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Product Summary

TKO, 5-Speed Transmission Speeds, 600 ft./lbs. Torque

  • TREMEC is pleased to announce the release of the new TKX, a 5-speed RWD manual transmission developed solely for the aftermarket
  • 600 lb.-ft. of torque capacity; capable of engines speeds of 8,000 RPMs with shifts at 7,500 RPMs
  • Designed for multiple applications with three shifter locations
  • Compact, end-loaded design provides clearance in most transmission tunnels without floor modifications
  • Increased case strength with three-piece aluminum housing provides outstanding structural stiffness
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Key Specs

MFG. Part #TCET18086
Transmission Speeds5-Speed
Torque600 ft./lbs.
Input Shaft Spline Count10
Input Shaft Diameter1.125"
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Need To Know

Quick and Easy Returns

Return Policy

TREMEC TCET18086 Details

All-New 5-Speed RWD Manual Transmission Designed Specifically for the Aftermarket. Designed for multiple applications with little to no floor pan modifications. Compact, end-loaded design provides the perfect solution for custom builds. Outstanding shift-ability at high RPMs (up to 7500) to match modern, high-performance engines. 600 pound-foot (lb.-ft.) of torque capacity. Single overdrive reduces engine wear and fuel consumption for comfortable roadway driving.

The result is superior shift-ability with smooth shifts at high RPMs through the use of multi-cone synchronizers and hybrid synchronizer rings. At the same time, noise, vibration and harshness (NVH) performance is optimized with a gear layout to best control stress levels, while providing structural stiffness with a ribbed, 3-piece aluminum housing. Durability is further optimized with oversized gear widths, gaskets at all flanges and caged needle bearings in all gear positions.

Whether restoring or upgrading a classic muscle car or a 1930s-era roadster coupe, the new TREMEC TKX 5-speed RWD manual transmission delivers a top-quality drivetrain solution.

  • All-new 5-speed, single overdrive manual transmission designed, tested and built specifically for the aftermarket
  • 600 lb.-ft. of torque capacity; capable of engines speeds of 8,000 RPMs with shifts at 7,500 RPMs.
  • Three-piece aluminum housing provides outstanding structural stiffness and increased case strength
  • Designed for multiple applications with three shifter locations.
  • Compact, end-loaded design provides clearance in most transmission tunnels without floor modifications.
  • Increased case strength with three-piece aluminum housing provides outstanding structural stiffness.
  • Gaskets at all flanges simplifies installation and eliminates fluid leaks.
  • Superior shift-ability through use of multi-cone synchronizers and hybrid synchronizer rings made of sintered bronze and carbon
  • All gears and shafts made from special grade steel (ASTM 4615), providing increased torque carrying capacity.
  • Equipped with a high-performance short-throw billet aluminum shifter that isolates road noise, while providing clean, crisp shifts.
  • Robust design with internal three-rail shift system and steel shift forks.
  • Wide gear width increases gear life and torque capacity.
  • Ford case pattern and input configuration, integrated Ford transmission mount pattern 
  • Gear layout and caged needle bearings reduce end play while minimizing noise, vibration, and harshness (NVH)
  • 10-spline input shaft and 31-spline output shaft for added strength
  • Built-in reverse light switch and cruise control safety switch provide safety and creature comfort for any application
  • Gear Ratios
    • 1st - 3.27, 2nd - 1.98, 3rd - 1.34, 4th - 1.00, 5th - 0.72, Rev - 3.00
  • Supplied speedometer drive gear, 7 tooth count

Note - This transmission has a long style input shaft - Requires a 6.925" depth Bell Housing (91027014) for SBF engines such as 289, 302, 351W, and 351C engines. 

Warranty Information

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For any warranty issues with TREMEC transmissions, please contact TREMEC directly. TREMEC provides a Product Support Form to be filled out and submitted to them, after which TREMEC will contact you directly to complete the warranty process.

TREMEC Transmission Limited Warranty (PDF)

TREMEC Product Support Form (Link to TREMEC's Website)

Speedway Motors cannot facilitate the return of defective Tremec products as they have requested to handle these directly with the consumer. For defective product support and Return Authorization, please contact Tremec at +1 (800) 401-9866 (USA) or by ema

TREMEC TCET18086 Specifications

KEY SPECS
MFG. Part #TCET18086
BrandTREMEC
Transmission Speeds5-Speed
Torque600 ft./lbs.
Input Shaft Spline Count10
Input Shaft Diameter1.125"
GENERAL
Output Shaft Spline Diameter1.375"
Output Shaft Spline Count31
Case MaterialAluminum
First Gear Ratio3.27:1
Gear Ratio (2nd)1.98:1
Gear Ratio (3rd)1.34:1
Gear Ratio (4th)1.00:1
Gear Ratio (5th)0.72:1
Bellhousing IncludedNo
Yoke IncludedNo
GTIN Code041969292020
Shifter IncludedNo
Sold in QuantityEach
Yoke StyleSlip On
Shifter StyleLinkage operated

Ratings & Reviews

5

3 Reviews

Overall Assessment

Customers are delighted with the quality and durability of our product, noting its perfect fit in vehicles like the Mustang. Its reliability stands out, with users remarking on its robustness. They appreciate the ease of assembly, emphasizing on the minimal issues encountered. The product's size is another admired feature, a perfect match for those who value compact and sturdy design. The product's availability and fast delivery via Speedwaymotors comfortably outweighs experiences with other providers.

5

3 reviews

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Easy to do

5.0

3 years ago

The Rog

Kearney, NE

Verified

We put it in a Mustang with a 351C. It went together with very few issues

Would Recommend

Best service ever

5.0

4 years ago

DRB

St Louis Mo

Verified

Bought this to go in a 68 mustang just can't beat its size and durability

Would Recommend

Very happy with purchase.

5.0

4 years ago

John

Nebraska

Verified

Waiting for 4months from another seller. Saw Speedwaymotors had it in stock, canceled other order and placed order. Showed up next business day!

Would Recommend

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