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Tremco TKO 500 5-speed Conversion Kit for Jaguar XJ-S - 17-5250

XJ-S V-12
Sold Per: Kit
Estimated Quantity Available: 0
Pricing: $4,995.00


  • Rated for a continuous 550 HP and 500 ft/lbs of torque, this gearbox has a low 3.27 1st gear and .68 5th gear. This is the most popular choice for the 1981-1993 XJS HE which has a 2.88 rear-end ratio. The low first gear gives dramatically better acceleration without changing the differential ratio. 5th gear is excellent for low-RPM cruising above 70 mph. Top speed is increased.
  • Kits are based on a brand new TREMEC TKO-500 or TKO-600 5-speed or a T-56 6-speed. These are exceptional close-ratio transmissions that can easily withstand a V-12s power and torque output. They yield refined, positive shifting through internal rails (no external linkage other than shift lever) and are fully synchronized in all forward gears. The 5-speeds have one overdrive gear and the 6-speeds have two well-spaced and useful overdrives.
  • These Tremec transmissions have been custom tailored to fit inside the Jaguar transmission tunnel and the shift lever exits in the proper position. No modifications are required other than cutting a 3" x 4" hole in the tunnel for the shift lever.
  • Kits are complete. All components are included ? top-to- bottom and front-to-rear.
  • Installation is straightforward and step-by-step illustrated instructions are included.
  • You can convert back to the automatic transmission with almost no evidence.
  • Conversion is warranted for 90 days, which is the warranty carried by TREMEC.
  • With four gear sets to choose from, no differential gear change required for any model year.
  • Kit is developed to replace the Borg-Warner and General Motors three or four-speed automatics supplied in the 1975-1996 XJ-S V-12.
  • The step-by-step instruction manual makes installation relatively easy and includes many photographs.
  • Tools required are specified. The conversion was designed with the weekend do-it-yourself mechanic in mind.
  • Installation takes about 24 hours.

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WARNING: Cancer and Reproductive Harm


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  • Item Requires Shipping
  • 150.0 lbs.



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