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Parts for the
T18 & T19 Transmissions
The T18 is fully supported for parts. The transmission remains in aftermarket production at Novak and is still one of the most popular truck, industrial and Jeep conversion transmissions available.
The Master Rebuild Kit
Our master rebuild kits have been assembled for our customer's rebuilds as well as the thousands of rebuilds we do at Novak. It is the most complete kit we've seen anywhere and features all the consumable and wear item components. Cut-rate "BK" basic kits seen on the market don't hold a candle to the Novak kits' quality and completeness.
These rebuild kits set the industry standard for reliability, using only premium bearings and seals from proven manufacturers like Timken, JTEKT, Nachi, CR Seals, and more. No single brand makes every part we require, so we hand-select each component to ensure unrivaled performance and longevity.
Novak kits include:
- World class deep ball roller and needle bearings
- Premium seals with best sealing forms and materials
- Thick, strong gaskets
- Precision brass synchro (blocker) rings
- Top cover rebuild components: plugs, poppet springs, balls, interlocks, etc
- New synchronizer struts and springs
- Instructions, based on our own in-house rebuilds
- Access to Novak's T18 rebuild techs if you have rebuild questions
Rebuild Requirements
It is common for our customers to do top-level rebuild work, using good methods and by following our included instruction guide.
We suggest the rebuilder have access to a set of snap ring pliers, a bearing puller and a hydraulic press.
Ford T18
Master Rebuild Kit
T18MR-1F;T18MR-2F;T18MR-3F;T18MR-4F;T18MR-A
Ford T19
Master Rebuild Kit
T19MR-1F;T19MR-2F;T19MR-3F
Jeep T18
Master Rebuild Kit
T18MR-1J;T18MR-2J;T18MR-3F;T18MR-A
International T19
Master Rebuild Kit
T19MR-IH
Related Products
K-PTO
T18 / T19 Exploded Parts Diagram
Click a number on the diagram to find that part, or search the list. 43 of the 104 parts listed can be ordered online — for anything else call 877-602-1500.
Several parts changed between Ford, Jeep and IH versions and model years — the versions are listed under each number. Not sure which you have? Call us.
Pinch or use + to zoom
Available onlineCall to order / not sold separately
No parts match your search. Call 877-602-1500 and we’ll find it for you.
Mainshaft pilot roller spacer#T97-29 T98/T18/T19 Countershaft Needle Bearing Spacer (7 Required)$1.45
Synchronizer ring, 3rd/4th — small cone#1301-091-004 Ring, synchronizer, small cone, wide/narrow key, 3rd-4th, T18, S27T, Ford 1965-1967, Jeep 1968-1978Ford 1965–67, Jeep 1968–78
Synchronizer ring, 3rd/4th — small cone, S27T#T87D-14 T18 3rd-4th Synchronizer Ring, S27T (Small Cone)$16.95- Synchronizer ring, 3rd/4th — large cone#T19-14 Ring, synchronizer, 3rd-4th, T18 & T19 transmission. S27T, large cone. Ford, 1968-1987, Jeep 1978-1984Ford 1968–87, Jeep 1978–79
Synchronizer spring, 3rd/4th#4682AH T18/T19/T98 Synchronizer Spring, 3rd–4th$2.64
3rd/4th synchronizer to mainshaft snap ring#4746 T18 3rd-4th Synchro Assembly to Mainshaft Snap Ring$1.30
Synchronizer keys & springs kit, 3rd/4th — wide#T18-K3 T18/T19 3rd/4th Synchronizer Keys & Springs Kit, Wide$13.95
Synchronizer keys & springs kit, 3rd/4th — narrow#T19-K3 T18/T19 3rd/4th Synchronizer Keys & Springs Kit, Narrow$13.95- Synchronizer hub, 3rd/4thNot sold separately
- Synchronizer spring, 3rd/4th#4682AH T18/T19/T98 Synchronizer Spring, 3rd–4th$2.64
- Synchronizer sleeve, 3rd/4thNot sold separately
- Synchronizer ring, 3rd/4th — small cone#1301-091-004 Ring, synchronizer, small cone, wide/narrow key, 3rd-4th, T18, S27T, Ford 1965-1967, Jeep 1968-1978
- Synchronizer ring, 3rd/4th — large cone#T19-14 Ring, synchronizer, 3rd-4th, T18 & T19 transmission. S27T, large cone. Ford, 1968-1987, Jeep 1978-1984
- Synchronizer assembly, 3rd/4th — narrow keys#AT19-2.5 Assembly, synchronizer, 3rd – 4th, narrow keys, T18 & T19 transmissions
- 3rd gear, 6.32:1 version#T18-11 Gear, 3rd, T18 transmission, L24-S27, small cone, 6.32:1 versionL24-S27, small cone
- 3rd gear, Jeep 4.02:1 version (1969–73)#T18A-11 Gear, 3rd, T18 transmission, L28-S27T, small cone, Jeep 4.02:1 version, 1969-1973L28-S27T, small cone
Mainshaft snap ring#4745D T98/T18/T19 1st-2nd Gear Journal Snap Ring (Qty 2-3)$1.07- 2nd gear thrust washer (early)#T98-63 T98/T18 Early 2nd Gear Thrust Washer$10.95
- 2nd gear, 6:1 version#T18-31 Gear, 2nd, T18 transmission, 6:1 version, L33-S36T. Ford, Jeep, IH, 1.69 2nd gearL33-S36T
- 2nd gear, medium-duty Ford / John Deere#T18B-31 Gear, 2nd, T18 transmission, L34-S36T. Rare: med duty (e.g. F500) Ford trucks and John Deere ~1967-1975. Use with 38-32-26-16 cluster and 28T third gearL34-S36T
- 2nd gear, Jeep / IH#T18C-31 Gear, 2nd, T18 transmission, L36-S36T, Jeep, IHL36-S36T
- MainshaftNot sold separately
- Synchronizer ring, 1st/2nd#T98-83 Ring, synchronizer, 1st – 2nd, T98 & T18 transmissions, 1948-1983, S36T
- Mainshaft snap ring#4745D T98/T18/T19 1st-2nd Gear Journal Snap Ring (Qty 2-3)$1.07
- Synchronizer hub, 1st/2nd#T98-80 Hub, syncronizer, 1st – 2nd, T98 & T18 transmission
- Synchronizer key assembly, 1st/2nd (ball & spring)#T98-82 T98/T18 Low-Reverse Synchro Key Assembly, Ball & Spring
Poppet ball#38G25 Detent Poppet Ball, 0.375"$0.89- Poppet spring#T87D-42A Spring, detent, 2nd gear synchronizer, T98 & T18 transmissions. 3 required3 required
1st/2nd shift plate snap ring#4773 T18 1st-2nd Shift Plate Snap Ring$3.95- Mainshaft snap ring#4745D T98/T18/T19 1st-2nd Gear Journal Snap Ring (Qty 2-3)$1.07
- 1st/reverse sliding gear#T18-12 Gear, 1st – reverse, sliding, T18 transmission, S40-36TS40-36T
- Synchronizer assembly, 1st/2nd#AT98-80 Assembly, synchronizer, 1st - 2nd , T18, T98 transmission, 40t. Includes hub, sliding gear, struts & springs
- Countershaft rear thrust washer, steel (case side)#T98-33 Washer, thrust, countershaft, rear, case side, T98, T18 & T19 transmissions
Countershaft rear thrust washer, steel-backed bronze#T18-32 T18/T98 Countershaft Rear Thrust Washer$24.95- Countershaft needle bearing spacer#T97-29 T98/T18/T19 Countershaft Needle Bearing Spacer (7 Required)7 required$1.45
- Countershaft needle rollers#T97-166 Bearing, needle roller, T18, T19, 110 needed per transmission110 per transmission
Countershaft spacer tube#T98-28A Countershaft Spacer Tube, T98/T18/T19$16.95- Cluster gear, 6.32:1 version#T18-8 Gear, cluster, T18 transmission, 6.32 1 version, R43-36-27-16TR43-36-27-16T
- Cluster gear, 4.02:1 version (Jeep / IH)#T18C-8 Gear, cluster, T18 transmission, 4.02 1 version, R37-32-24-S16T, Jeep, IHR37-32-24-S16T
- Countershaft front thrust washer#T98-30 Washer, thrust, countershaft, front, T18 & T98 transmissions
- Reverse shift arm#T98-54N T98/T18 Reverse Shifter Arm
Reverse shift arm insert shoe#T19-51 T19 Reverse Shifter Insert Shoe$39.95- Fill plug, 3/4" pipe#444752 Plug, steel, 3/4-14 pipe, socket head
- Drain plug, 3/4" pipe#444752 Plug, steel, 3/4-14 pipe, socket head
- Lock washerNot sold separately
- Bolt, transmission to clutch housingNot sold separately
Shifting shoe spring clip washer#4747A T18 Shifting Shoe Spring Clip Washer$0.16
Reverse idler gear snap ring#4828F T18 Idler Gear Snap Ring (1.809" Dia, 0.046" Thick)$2.63
Reverse idler gear thrust washer#T98-84A T18 Reverse Idler Thrust Washer$4.20
Reverse idler bearing sleeve#T98-85A Sleeve, reverse idler bearing race, T98 transmission$17.95- Reverse idler needle rollers#125X1SPH Bearing, needle roller, reverse idler, T98, T18, transmission, .125” x 1.000” spherical end, 74 req74 required
Reverse idler needle roller spacer#T98-87A T18/T98 Reverse Idler Needle Roller Spacer- Reverse idler gear assembly#AT18-10 Gear, reverse idler assembly, T18 transmission, S17T-S20TS17T-S20T
- Lock washerNot sold separately
- Adapter plate boltsNot sold separately
- Drive gear locknutNot sold separately
- WasherNot sold separately
- Adapter plateNot sold separately
- Countershaft lock plate, two-bolt style#T97-48 Plate, lock, idler & countershaft, T18 transmission, two bolt style
- Countershaft lock plate, single-bolt style#4501 T98/T18 Reverse & Countershaft Idler Retention Lock Plate Bracket (Single Bolt)
Reverse idler shaft with O-ring#1301-568-002 T18/T19/T98 Reverse Idler Shaft with O-Ring$20.95
Countershaft#1301-568-001 T98/T18/T19 Counter Idler Shaft$41.95
Rear gasket, Ford#6371 Ford T18/T19 Rear Output Housing Gasket$2.39
Rear gasket, industrial#17-55A Industrial T98/T18 Rear Main Bearing Gasket$3.45
Rear gasket, Jeep / IH#8188 Jeep/IH T98/T18/T19 Rear Output Gasket$5.51- Rear output seal, Jeep (to Dana 20 adapter)#21210 Seal, oil, rear output, Industrial, Jeep T18 trans to Dana 20 transfer case adapter, OEM style
Rear output seal, Ford 2WD#16925 Ford T18 2WD Rear Output Oil Seal$10.95- Rear output seal, Ford T98#376074 Seal, Rear Output, Ford T98
- Speedometer gear spacer, 1-1/2" ID#T18-75.5 Spacer, speedometer gear, 1 1/2" ID, T18
- Speedometer gear spacer blank, 1-3/8" ID#T98-75.5 Speedometer Gear Spacer Blank, 1-3/8" ID, T98 & T18
- Speedometer drive gear#T18-1698 Gear, speedometer, T18
Rear bearing locating snap ring#4745E T98/T18/T19 Input Bearing OD Snap Ring$3.23
Rear bearing#6308N T18/NP435/SM465 Rear Ball Bearing w/ Retaining Ring Groove$28.95
Reverse shift arm taper pin#103565 T18 Reverse Shift Arm Taper Pin$2.50- Reverse shift arm pivot pin#T98-55N Pin, tapered, reverse shifter, T98 & T18 transmissions
- Reverse shift arm pivot bolt#T18-55 Pivot, bolt, reverse, T18
Reverse shift arm pivot O-ring#SP18-50 T18 Small Parts KitSold in the T18 small parts kit$60.25- Lock washer, 3/8"#91102A031 Washer, lock, split, 3/8, zinc plated
- Side cover bolt, 3/8-16 x 5/8"#92865A621 Bolt, 3/8-16 x 5/8, hex head, grade 5, zinc plated
- Side cover bolt, stainless button head#92949A622 Bolt, 3/8-16 x 3/4, hex socket, button head, stainless
Side (PTO) cover — billet, T18#BIL-PTO-T18 T18 PTO Port Cover, 6-Bolt, Billet Aluminum$41.95
Side (PTO) cover — billet#BIL-PTO PTO Port Cover, 6-Bolt, Billet Aluminum$41.95- Side (PTO) cover — stamped steel#T53-160B Cover, PTO port, six bolt, stamped steel
- Transmission caseNot sold separately
- Mainshaft pilot needle rollers#T97-166 Bearing, needle roller, T18, T19, 110 needed per transmission
- Input (clutch) shaftNot sold separately
- Front bearing oil slinger washer#T90A-136A Washer, oil slinger, front bearing, T18, T19 & T98 transmissions, 1.580” x 2.312”
- Front bearing, 20 mm wide (early)#1308SG1 Bearing, deep groove ball, T98, T18, T19 front input. 20Mm wide. Also T15
- Front bearing (late Ford)#6308N T18/NP435/SM465 Rear Ball Bearing w/ Retaining Ring Groove$28.95
- Front bearing locating snap ring#4745E T98/T18/T19 Input Bearing OD Snap Ring$3.23
- Front bearing snap ring spacer (industrial)#4774 Snap Ring, Spacer, bearing, front, T98 & T18 industrial transmissions
Front bearing lock ring, 0.117–0.119"#4816 Ring, snap, retaining, selective, .117 .119, T18 transmission, use in 78376 kit
Front bearing lock ring, 0.120–0.122"#4816A Ring, snap, retaining, 0.120” – 0.122, 0.119 nominal, T18 main drive to bearing, orange
Front bearing cap gasket#17-55B T18 Input Bearing Retainer Gasket$2.92- Front bearing capNot sold separately
- Front bearing cap bolt#92865A583 Bolt, 5/16-18 x 1, hex head, grade 5, zinc plated
- Lock washer, 5/16"#91102A030 Washer, lock, split, 5/16, zinc plated
Also for the T18 / T19 — not pictured
- Small parts kit, T18#SP18-50 T18 Small Parts Kit$60.25
Lid (shift cover) rebuild kit, T18#SP18-50Y T18 Lid Rebuild Kit$68.25
Small parts kit, T19#SP19-50 T19 Small Parts Kit$60.25
Lid (shift cover) rebuild kit, T19#SP19-50Y T19 Lid Rebuild Kit$68.25
Gasket set, T98/T18/T19#18-55 T98/T18/T19 Transmission Gasket Set$21.95
Front input seal (IH)#12364 Seal, oil, front input, IH T19, IH T90 and IH NP435 transmissions$18.95
Front face gasket, 4" bore Dana 18/20#8179 Dana 18/20 Front Face Gasket 4" Bore$4.78
Because we manufacture new T18 assemblies at Novak, essentially all parts for the T18, including gears, shafts, factory adapters & tailhousings, retainers, etc. are available. For anything not shown, contact us.
T18 Instructions
T19 Instructions