
PRGT2046A (2001) Page 1 of 27
Chassis And Enclosures

PRGT2046A (2001) Page 2 of 27
Chassis And Enclosures
Ref # Part Number Qty Description
1 175465 Rail, Frame RH
2 140506 Drawbar, Gt
4 73680700 Nut, Crownlock 7/16-14Unc
5 163976X428 Dash
6 157882 Dash Asm., Lower
7 17720408 Screw, Thd Cut 1/4-20 x 1/2
8 145166 Support, Battery
14 175259X428 Hood Asm., Pnt
15 160568 Lens, Asm Headlight bar
16 121794X Cover, Access
17 17060612 Screw, 3/8-16 x 3/4
18 175289 Grille
19 19131312 Washer 13/32 x 13/16 x 12 Ga.
20 74760616 Bolt, Fin Hex 3/8-16 x 1
21 73680600 Nut, Crownlock 3/8-16 Unc
23 17060616 Screw 3/8-16 x 1
24 145243X428 Footrest, RH
28 145244X428 Footrest, LH
30 145051X014 Saddle
31 161419 Bracket, Supt 1-pc VGT Steering
32 161327 Bracket, Pivot Chassis LH
33 161326 Bracket, Pivot Chassis RH
34 177018 Plate Asm Engine Chassis
35 19111116 Washer 11/32 x 11/16 x 16 Ga.
36 17060512 Screw 5/16-18 x 3/4
37 167286X428 Fender, Pnt.
39 175278 Bracket, Axle Front
40 UNKNOWN
42 72140608 Bolt, Carriage 3/8-16 x 1
43 136939 Bracket, Spnsn Front Lh
44 136940 Bracket, Spnsn Front Rh
45 154913 Bracket Asm., Susp Chassis Rh
47 17670608 Screw Thdrol 3/8-16 x 1/2 TYT
50 175476 Bracket, Chassis Front
56 154914 Bracket Asm., Susp Chassis Lh
58 175315 Bracket Asm., Fender
60 17060620 Screw Thdrol 3/8-16 x 1-1/4
63 19131614 Washer 13/32 x 1 x 14 Ga.
67 156973 Guide Belt Gear Dr.
68 17490508 Screw, Thd 5/16-18 x 1/2
70 137159 Guide, Belt Mid Span
84 142992 Stop, Over Center Mower
85 144911 Bracket Support Transaxle
86 74760716 Bolt, Fin Hex 7/16-14 Unc x 1
88 10040700 Washer Lock Hvy HLCL Spr. 7/16
90 11050600 Washer, Lock External Tooth 3/8
91 175464 Rail, Frame Lh
106 138776 Bolt 5/16-18 Type TT
122 161464 Screw Hex Wshd 8-18 x 7/8
130 164863 Screw HWHD Hi-Lo #13-16 x 3/4
137 74780616 Bolt Fin Hex 7/16-14 x 1 Gr. 5
138 163975X428 Cupholder YTGT
139 171873 Bolt Shoulder 5/16-18 TT
140 163806 Magnet YTGT
141 163805 Stricker Plate YTGT
142 161897 Bracket Dash RH
143 169847X428 Grille Skirt RH
144 161900 Bracket Dash LH

PRGT2046A (2001) Page 3 of 27
Chassis And Enclosures
Ref # Part Number Qty Description
146 169848X428 Grille Skirt LH
147 164863 Fastener Nutpal
148 164655 Extrusion Bumper
150 161237 Duct Heat Hood

PRGT2046A (2001) Page 4 of 27
Decals

PRGT2046A (2001) Page 5 of 27
Decals
Ref # Part Number Qty Description
1 176674 Decal, Dash
2 170851 Decal, Engine
3 176272 Decal, Hood, RH
4 176273 Decal, Hood, LH
5 176652 Decal, Hood Side PNL
9 172740 Decal, Fender
10 157140 Decal, Danger
11 101892X Decal, Clutch/Brake
12 UNKNOWN
14 160397 Decal, V-Belt Schematic
15 172743 Decal, Ins. Whl. Strg.
16 170563 Decal, Housing Mower, Warning
19 145005 Decal, Battery
23 106202X Reflector, Taillight
29 176650 Decal, Fender
30 172272 Decal, Replacement Parts
138311 Decal, Handle Lift (Lift Handle)
133671 Pad Footrest
177271 Manual, Owner's (English)
177272 Manual, Owner's (French)

PRGT2046A (2001) Page 6 of 27
Electrical

PRGT2046A (2001) Page 7 of 27
Electrical
Ref # Part Number Qty Description
1 144926 Battery
2 74760412 Bolt Hex Head 1/4-20 x 3/4
8 7603J Tray, Battery
10 145211 Bolt Btr Frt 1/4-20 X 7.5 zinc
11 150109 Holdown Battery Front Mount
12 145769 Nut Push Nylon 1/4"
16 153664 Switch Interlock Push-In
21 166184 Harness Headlight
22 4152J Bulb Light
24 4206J Cable, Battery
25 146149 Cable, Battery
26 108824X Fuse
27 73510400 Nut Keps Hex 1/4-20 Unc
28 170697 Cable,Ground
29 160784 Switch, Plunger
30 175566 Switch, Ign
33 140401 Key
40 170238 Harness, Ignition
41 17720408 Screw 1/4-20 x 1/2
42 131563 Cover, Terminal Red
43 175141 Solenoid
45 122822X Ammeter
50 174653 Switch, PTO
52 141940 Protection Wire Loop
79 163996 Bulbholder
81 109748X Relay Asm.

PRGT2046A (2001) Page 8 of 27
Engine

PRGT2046A (2001) Page 9 of 27
Engine
Ref # Part Number Qty Description
1 Engine Briggs Model # 407777
2 149723 Muffler
8 121361X Pulley V-Idler
9 150828 Keeper Asm Belt Engine Vgt 96
10 175287 Bushing
11 170056 Clutch Electric
12 143996 Pulley Engine Grnd Drive
15 151346 Tank Fuel Rear 3.50 YT/GT
16 109227X Pad Spacer
17 106082X Pad Spacer
18 140527 Cap Asm Fuel Top Vent N/Lany
20 164067 Control Throttle
21 164863 Screw HWHD Hi-Lo #13-16 x 3/4
22 164068 Control Choke
24 11050600 Lockwasher Ext Tooth 3/8
25 73920600 Nut Keps 3/8-24 UNF
26 3645J Bushing
27 139277 Stem Tank Fuel
28 7834R Fuel Line
29 137180 Spark Arrester Kit
35 10040500 Washer Lock Hvy HLCL Spr. 5/16
37 123487X Clamp Hose
39 17490636 Screw 3/8 - 16 x 2-1/4 UNC TT
40 17490664 Screw 3/8 - 16 x 4 UNC TT
41 126197X Washer 1-1/2 OD X 15/32 ID X .250
42 10040700 Washer Lock 7/16
43 173937 Bolt Hex 7/16-20 x 4 Gr. 5-1.5 Thr.
45 73510400 Nut Keps Hex 1/4-20 Unc
47 175288 Bushing
62 146629 Shield Heat Muffler
69 165391 Gasket Muffler
70 176069 Tube Exhaust LH
71 176070 Tube Exhaust RH
74 162295 Elbow Street Brass
79 71070512 Screw Hex Hd Cap 5/16-18 x 3/4
81 148456 Tube Drain Oil Easy
82 148315 Plug Oil Drain Easy
83 171877 Bolt 5/16-18 Unc x 3/4 w/Sems
84 17490624 Screw Thdrol 3/8-16 x 1-1/2

PRGT2046A (2001) Page 10 of 27
Ground Drive

PRGT2046A (2001) Page 11 of 27
Ground Drive
Ref # Part Number Qty Description
1 9858M1 Key, Woodruff
3 7563R Washer, Thrust, Axle
4 17490508 Screw Thdrol 5/16-18 x 3/4
5 73680600 Nut, Crownlock 3/8-16
6 76020412 Pin, Cotter
7 149176 Wheel, Hub Assembly
8 12000034 Klip, Ring
9 140080 Bolt, Hub
10 142509 Disc, Brake
11 136927 Yoke, Brake Disc
12 73750800 Nutlock 1/2-20 Unf
13 139419 Washer, Special
14 138901 Bushing
15 19131316 Washer 13/32 x 13/16 x 16 Ga.
16 143012 Set, Screw 1/4-28 x 3/4
17 126909X Spring
18 137104 Lever, Brake
19 136926 Cam, Brake Disc
21 23260412 Screw, Flat Head 1/4-28 x 3/4
22 633A109 Gearshift, Lever Assembly
23 106932X Knob
24 136925 Support, Puck Brake
25 136923 Puck, Brake Top
26 137552 Spring, Return
27 17490528 Screw, Hex Wsh Thd. 5/16-18 x 1-3/4
28 73350600 Nut, Hex Jam 3/8-16
29 137213 Brake, Rod
30 19131616 Washer 13/32 x 1 x 16 Ga.
34 71673 Cap, Plunger
35 137648 Rod, Parking Brake
36 149412 Spring, Drive Ground
37 121749X Washer 25/32 x 1-1/4 x 16 Ga.
38 150035 Nyliner
39 74321016 Screw, Fin. #10-24 x 1
40 5304J Actuator, Interlock Switch
41 73931000 Nut Centerlock 10-24-Umc
42 8883R Cover, Pedal
46 145170 Retainer, Spring
47 138228 Clutch Rod
48 72110612 Bolt, Carriage 3/8-16 x 1-1/2 Gr. 5
50 131494 Pulley, Idler, Flat
51 73800600 Nut, Crownlock 3/8-16 UNC
52 139123 Pulley, Idler, Grooved
53 207J Washer,Hardened
54 161590 Clutch, Arm Assembly
55 105706X Bearing, Idler
56 137153 V-Belt
57 141756 Bracket, Shift Rod, Hi-Lo
59 122253X Shift Rod, Hi-Lo
60 122268X Spring Clip, Connecting Link
61 137524 Pulley, Transaxle
62 10040700 Washer, Lock 7/16
63 74760720 Bolt, Fin Hex 7/16-14 x 1-1/4
64 154752 Shaft, Clutch/Brake Pedal
65 67609 Bolt, Shoulder
66 140296 Washer,Hardened
67 19131312 Washer, Flat
68 5142H Pin, Roll

PRGT2046A (2001) Page 12 of 27
Ground Drive
Ref # Part Number Qty Description
69 136327 Hub, Cover
117 73900600 Nut, Lock Flg. 3/8-16 Unc

PRGT2046A (2001) Page 13 of 27
Lift Assembly

PRGT2046A (2001) Page 14 of 27
Lift Assembly
Ref # Part Number Qty Description
1 121006X Rod Asm., Lever
2 159187 Shaft Asm., Lift Vgt
3 159189 Lever Asm., Lift Rh
4 12000022 E-Ring Truarc #5133-87
5 19292016 Washer 29/32 x 1-1/4 x 16 Ga.
6 71110624 Bolt, Fin Hex 3/8-16 x 1-1/2
7 125631X Grip, Handle Fluted
8 170770 Button, Plunger
9 122364X Plunger, Lever Lift
10 2876H Spring 2-1/8"
11 146704 Link Lift
12 163552 Retainer, Spring
13 139868 Arm, Suspension Vgt
14 169865 Bearing, Pvt. Lift Tapered
15 73680600 Nut, Crownlock 3/8-16 Unc
16 674A247 Spring Asm., Assist Lift
17 73350600 Nut, Hex Jam 3/8-16 Unc
18 143363 Bracket, Spring Assist
19 19131316 Washer 13/32 x 13/16 x 16 Ga.
20 5328J Bolt, Adjust Spring Assist
21 74760616 Bolt, Fin Hex 3/8-16 x 1
22 127218 Link, Front
23 4939M Retainer, Spring
24 73350800 Nut, Jam Hex 1/2-13 Unc
25 130171 Trunnion
26 73800800 Nut, Lock W/Wsh 1/2-13 Unc
29 150233 Trunnion Inf. Height
30 110807X Nut, Special
31 19131016 Washer 13/32 x 5/8 x 16 Ga.
32 137150 Spring, Compression Inf Hgt
33 76020308 Pin, Cotter 3/32 x 1/2
34 137167 Rod, Adj Lift
35 138057 Knob, Inf 3/8-16 Unc
38 155097 Pointer, Height Indicator
39 123935X Plug, Hole
40 17060516 Screw 5/16-18 x 3/4
41 73540600 Nut, Crownlock 3/8-24
42 19112410 Washer 11/32 x 1-1/2 x 10 Ga.
43 123934X Scale, Indicator Height
70 145212 Nut, Hexflange Lock
72 110452X Nut, Push Phos & Oil
73 73350600 Nut Hex Jam 3/8-16 Unc

PRGT2046A (2001) Page 15 of 27
Mower Deck

PRGT2046A (2001) Page 16 of 27
Mower Deck
Ref # Part Number Qty Description
1 156833 Deck Weldment
2 138457 Bracket Asm., Sway Bar
3 UNKNOWN
5 4939M Retainer Spring
6 130832 Arm, Suspension, Rear (Sway Bar)
8 850857 Bolt, Patched 3/8-24 x 1-1/4 Gr. 8
9 10030600 Washer, Lock Hvy., Unplated 3/8
10 140296 Washer, Hard Blade, Mower Vented
11 176084 Blade, Hi Performance
152443 Blade, Mulching
13 137553 Shaft Asm. w/Lower Bearing (Includes Key No. 12)
14 137152 Housing, Mandrel
15 110485X Bearing, Ball, Mandrel
16 140329 Stripper, Mower Round
18 72140505 Bolt, Carriage 5/16-18 x 5/8
19 132827 Bolt, Hex Head, Shoulder 5/16-18
20 145055 Baffle, Vortex Mower 46"
21 73680500 Nut, Crownlock 5/16-18 UNC
22 134753X421 Stiffiner, Bracket
23 131267 Bracket, Deflector
24 105304X Cap, Sleeve
25 149287 Spring, Torsion, Deflector
26 110452X Nut, Push
27 166883X428 Deflector Clipping 46" Blk
28 19111016 Washer 11/32 x 5/8 x 16 Ga.
29 131491 Rod, Hinge
30 157722 Screw, Thdroll Wsh Hd
31 129963 Washer, Spacer Mower Vented
32 173434 Pulley, Mandrel
33 137266 Nut, Flg. Top Lock Cntr. 9/16
34 144945 Anchor, Spring Deck 46"
35 17490628 Screw, Thdroll 3/8-16 x 1-3/4 Tytt
36 19131316 Washer 13/32 x 13/16 x 16 Ga.
37 173438 Pulley, Idler, Flat
38 173900 Keeper, Belt, Idler
39 173899 Pulley, Idler, Driven
40 137273 Spring, Secondary 44/46/50 Vent
41 17060620 Screw, 3/8-16 x 1-1/4 Tytt
42 122052X Spacer, Retainer
43 144949 Arm, Idler Secondary
44 133943 Washer,Hardened
45 145059 Cover, Mandrel Deck
46 137729 Screw, Thdroll. 1/4-20 x 5/8
47 144959 V-Belt, Mower, Secondary
48 148763 V-Belt, Mower, Primary
49 73680600 Nut, Crownlock 3/8-16 UNC
50 72110612 Bolt, Carriage 3/8-16 x 1-1/2 Gr. 5
52 173901 Pulley Idler 46 Pri Drive
56 155986 Bar Adjusting Guage Wheel
57 156941 Pin Head Rivet
72 19131616 Washer 13/32 x 1 x 16 Ga.
101 145579 Cover Mulcher
102 71081010 Screw Pan Head Phillip 10-24 x 5/8
103 70071000 Washer Lock #10
104 19061216 Washer #10
105 160793 Latch Asm Mulch/Bagger
106 2029J Nut Weld
116 137644 Bolt, Shoulder

PRGT2046A (2001) Page 17 of 27
Mower Deck
Ref # Part Number Qty Description
117 133957 Gauge Wheel, Wide
118 73930600 Nut, Centerlock 3/8-16 UNC
119 19121414 Washer 3/8 x 7/8 x 14 Ga.
126 144948 Arm, Idler, Primary Deck 46"
127 173902 Pulley Idler V-Gr. Plated 4.25
173559 Deck Complete (Std. Deck-Order separately mulcher plate
and gauge wheel components Key Nos. 101-106 and
116-118)
143651 Mandrel Asm. 44"/50" service (Includes Key Nos. 8-10,
13-15, 31 and 33)

PRGT2046A (2001) Page 18 of 27
Schematic

PRGT2046A (2001) Page 19 of 27
Seat Assembly

PRGT2046A (2001) Page 20 of 27
Seat Assembly
Ref # Part Number Qty Description
1 171684 Seat
2 140551 Bracket, Pivot Seat
3 140675 Strap, Fender Asm.
4 127018X Bolt, Shoulder 5/16-18 x .62
5 145006 Clip, Push-In Hinged
6 73800600 Nut, Lock Hex w/Ins. 3/8-16 Unc
7 124181X Spring, Seat Cprsn.
8 171877 Bolt 5/16-18 UNC x 3/4 w/Sems
10 174894 Pan, Seat
12 121246X Bracket, Mounting Switch
13 121248X Bushing, Snap
14 72050412 Bolt, Carriage 1/4-20 x 1-1/2
15 121249X Spacer, Split
16 123740X Spring, Cprsn.
17 123976X Nut, Lock 1/4 Lg. Flg. Gr. 5
18 19171912 Washer 17/32 x 1-3/16 x 12 Ga.
19 166369 Knob, Seat
20 124238X Cap, Spring Seat Blk
21 171852 Bolt 5/16-18 Unc-2A
22 73800500 Nut, Crownlock 5/16-18

PRGT2046A (2001) Page 21 of 27
Steering Assembly

PRGT2046A (2001) Page 22 of 27
Steering Assembly
Ref # Part Number Qty Description
1 159944X428 Wheel, Steering
2 137094 Axle Asm., Front
3 6855M Fitting, Grease
4 161849 Spindle Asm, LH
5 161848 Spindle Asm., RH
6 6266H Bearing, Race Thrust Harden
7 121748X Washer 25/32 x 1-5/8 x 16 Ga.
8 12000029 Ring, Klip #T5304-75
9 121232X Cap, Spindle
10 74781044 Bolt, Fin Hex 5/8-11 x 2-3/4
11 136518 Spacer, Brg. Axle Front
12 73901000 Nut, Lock Flange 5/8-11 Unc
13 121749X Washer 25/32 x 1-1/4 x 16 Ga.
14 10040600 Washer, Lock Hvy Hlcl Spr 3/8
15 7810H Nut Lock Center 3/8-24 Unf
16 145103 Shaft Asm., Steering
17 176584 Rod Tie Service
18 137155 Draglink, Ball Joint Solid Vgt
19 156011 Support Asm., Steering Vgt
20 163887X428 Boot Steering Stealth GTYT
21 159945 Adapter, Wheel Steering
22 155105 Bushing, Strg.
23 152927 Screw
25 74780616 Bolt, Fin Hex 3/8-16 x 1 Gr. 5
26 159946X428 Insert Cap Strg WH
27 3366R Bearing, Col. Strg.
28 17000612 Screw Hexwsh thdr 3/8-16 x 3/4
29 104239X Bearing, Flange
31 138136 Bushing, Nyliner Snap
32 19111610 Washer 11/32 x 1 x 10 Ga.
33 10040500 Washer, Lock Hvy Hlcl Spr 5/16
34 74780512 Bolt, Hex Hd 5/16-18 x 3/4
35 138059 Gear, Sector Steering
36 176585 Tie Rod
37 73360600 Jam Nut RH Thread
38 109850X Joint Asm. Ball RH Thread
41 155246 Bracket Switch Interlock Vgt 97
42 17490508 Screw Thdrol 5/16-18 x 1/2 Tyt
44 160135X428 Extension Steering
45 19132411 Washer 13/32 x 1-1/2 x 11 Ga.

PRGT2046A (2001) Page 23 of 27
Transaxle

PRGT2046A (2001) Page 24 of 27
Transaxle
Ref # Part Number Qty Description
1 4197R Axle Shaft
2 12000034 Retaining Ring
3 4199R Final Drive Gear
4 4216R Differential Gear
5 4215R Differential Pinion
6 4217R Differential Carrier
7 174728 Axle Thrust Washer
8 74020652 Bolt, Hex Head 3/8-24 x 3-1/4 (1" Thread Length)
9 7392M Steel Ball
10 137261 Spring Shift Fork Detent
11 4985R Shift Fork, High-Low Range
12 6266H Thrust Bearing Race
13 4212R 4th Reduction Pinion
14 137125 Shaft, Brake
15 6276H Snap Ring, Crescent Type
16 633A63 High-Low Range Gears
17 8118M Needle Bearing
18 8740H1 Sintered Iron Bearing
19 122238X Shift Fork Shaft, High-Low Range
20 4218R Differential Pinion Spacer
21 6252H1 Differential Pinion Bushing
22 7810H Gripco Centerlock Nut 3/8-24
23 6262H Shift Fork, R.H.
24 7393R Oil Seal
25 992R1 Sintered Iron Bearing
26 139111 Shift Fork Shaft
27 4986R Shift Fork, L.H.
28 122254X Shift Shaft, High-Low Range
29 6269H Oil Seal
30 5855H Pressure Relief Valve
31 174731 Gearcase, Reverse Idler Shaft and Bearings, R.H. (Includes
Key No.'s 17,18, 25, 33, 50, 3, 77 and 82)
32 6277H Dowel Pin
33 4225R Needle Bearing
34 7396H Thrust Bearing Race
35 4198R 4th Reduction Gear Shaft
36 4200R 4th Reduction Gear Spacer
37 7395H Thrust Bearing Race
38 160789 Gate, Lower, Shift
39 174729 Gearcase and Bearings, L.H. (Includes Key Numbers 18,
25, 49, 50 (2), 51 and 52)
40 13320400 Pipe Plug 1/2-14 N.P.T.
41 17580520 Bolt, Hex 5/16-18 UNC x 1-1/4
45 6271H Oil Seal
46 13060200 Pipe Plug 1/4-18 N.P.T.
49 4895H Needle Bearing
50 4222R Needle Bearing
51 1529R Needle Bearing
52 8119M Needle Bearing
53 4220R Thrust Bearing Race
54 4209R 3rd Reduction Pinion, Low
55 4213R 4th Reduction Gear
56 4442R 3rd Reduction Pinion Spacer
57 4195R 2nd Reduction Gear Shaft
58 4214R Final Drive Pinion
59 4194R 1st Reduction Gear Shaft
60 7528R 1st Reduction Shaft Spacer

PRGT2046A (2001) Page 25 of 27
Transaxle
Ref # Part Number Qty Description
61 4208R 3rd Reduction Pinion High
62 4207R 2nd Reduction Gear
63 7398H Needle Bearing
64 4203R Low Speed Gear and 2nd Reduction Pinion Cluster
65 4204R Reverse Gear
66 2898J Key, Hi-Pro 1/8 x 17/32
67 12000033 Klip Ring
68 4205R Intermediate Speed Gear
69 4206R High Speed Gear
70 1370H Thrust Bearing Race
71 633A69 Intermediate and High Speed Cluster Pinions
72 139120 Input Shaft
73 4201R Low Speed Pinion
74 12000008 E-Ring
75 1153R Reverse Idler Gear
77 6803J Needle Bearing
79 1167R Sealing Washer
80 73360700 Nut, Hex, Jam 7/16-20
81 6270H Oil Seal
82 136984 Reverse Idler Shaft
84 5384J Gearshift Lever, Bent
85 2978J Gearshift Cap
86 633A85 Gearshift Ball Cover and Pin
87 8739H1 Shift Lever Guide Ball, Keyed
88 4924H Spring
89 19151516 Washer 15/32 x 15/16 x 16 Ga.
90 110542X Shift Mechanism Seal
91 19181511 Washer 9/16 x 15/16 x 12 Gauge
92 75J Gearshift Gate and Reinforcement
93 6274H Shift Ball Cover Gasket
94 76020412 Cotter Pin 1/8 x 3/4
96 159783 Screw, Hex, Washer, HD.
97 633A109 Gearshift Lever Assembly
98 174742 Transaxle, 6 Speed, Complete Assembly

PRGT2046A (2001) Page 26 of 27
Wheels & Tires

PRGT2046A (2001) Page 27 of 27
Wheels & Tires
Ref # Part Number Qty Description
1 59192 Cap, Valve, Tire
2 65139 Stem, Valve
3 106228X427 Rim Assembly, Front
4 8134H Tube, Front (Service Item Only)
5 106230X Tire, Front
6 278H Fitting, Grease (Front Wheel Only)
7 9040H Bearing, Flange (Front Wheel Only)
8 104757X Cap, Axle (Front Wheel Only)
9 105588X Tire, Rear
10 7154J Tube, Rear (Service Item Only)
11 106277X427 Rim Assembly, Rear
12 6856M Fitting, Grease
144334 Sealant, Tire (10 oz. Tube)