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Corvette Servo 700R4 4L60E 4L65E 4L70E 4L75E 700-R4 4L60 Automatic Transmission 2nd Gear HP Piston

OPT Product Code: NTP-K51828C
Corvette Servo 700R4 4L60E 4L65E 4L70E 4L75E 700-R4 4L60 Automatic Transmission 2nd Gear HP Piston

Corvette Servo 700R4 4L60E 4L65E 4L70E 4L75E 700-R4 4L60 Automatic Transmission 2nd Gear HP Piston

OPT Product Code: NTP-K51828C

Product Details

New USA made Corvette servo piston kit for the GM 700R4, 4L60, 4L60E, 4L65E, 4L70E, 4L75E THM700-R4 MD8

This servo is a must for any performance, towing, RV, or off-road transmission, but would be a nice upgrade for any 700-R4 or 4L60E.

Right away you'll notice faster and firmer 1-2 shifts and even slightly better 2-3.

This servo will give your transmission 50% more apply pressure, just what you need to keep from burning your transmission up under heavy load situations.

This servo is easy to install and can be done with the transmission in the vehicle.

The kit comes with all of the necessary seals for installation including the outer cover o-ring.

This servo works in all makes of this transmission. GM, Cadillac, Chevrolet, GMC, Pontiac, Oldsmobile, Hummer, Isuzu, Saab, including:

  • Astro Van 1985-2005
  • Avalanche 2002-2008
  • Blazer 1982-2005
  • Bravada 1991-2004
  • Brougham 1994-1997
  • Camaro 1982-2002
  • Canyon 2004-2012
  • Caprice 1982-1996 (Could have TH200-4R)
  • Colorado 1994-2012
  • Corvette 1982-2005
  • Custom Cruiser Wagon 1991-1992 (Could have TH200-4R)
  • Envoy - XUV - Denali 2001-2010
  • Firebird & Trans Am 1983-2002
  • Fleetwood 1994-1997
  • GTO 2004-2006
  • Hummer H2 2003-2007
  • Hummer H3 2006-2011
  • Impala SS 1994-1996
  • Isuzu Ascender 2003-2009
  • Isuzu Hombre 1996-2000
  • Isuzu Pickup, I280, I350, I290, I370 2006-2009
  • Rainer 2004-2007
  • Roadmaster 1992-1996
  • SAAB 9-7 2005-2009
  • Safari Van 1985-2005
  • Sierra Pickup 1982-2013
  • Silverado Pickup 1982-2013
  • SSR 2003-2007
  • Suburban 1982-2013
  • Syclone 1991-1993
  • Tahoe 1993-2013
  • Trailblazer 2001-2009
  • Typhoon 1991-1993
  • GMC & Chevy Van 1983-2013
  • Yukon 1993-2013

Industry Part Number: K77895

OEM Exchange # 8642079, 8673039, 8647351

These transmissions are part of the Turbo-Hydramatic series and also known as: 700R4, 4L60, 700-R4, TH700-R4, MD8, THM700R4, THM700-R4, 4L60E, 4L60-E, 4L65E, 4L65-E, 4L70E, 4L70-E, 4L75E, 4L75-E, M30, M32, M70

Great product
John wolf
Verified Buyer
Works great and easy to install!!
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04 Chevy Silverado servo upgrade
Verified Buyer
Recieved package in 2 days! Took my time to install it to make sure everything was right and for the money this an easy upgrade. Can tell a difference in shifting. Shifting from 1-2 was sluggish but after installing this servo it has firmed it up quite a bit. Highly recommended!
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Verified Buyer
Correct parts shipped quite fast, what more can you ask for! Quality kit with everything needed to do the servo upgrade.
1 of 1 customers found this helpful.
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No brainer. Must have upgrade.
Dan Hwang
Verified Buyer
This upgrade is cheap and OPT sends you everything you need including the o-rings. Shipping was fast and everything fit as described. The labor in itself is pretty straight forward and requires a bit of patience working in tight spaces. The results are pretty impressive with tighter shifts from 1st to 2nd.
2 of 2 customers found this helpful.
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Corvette Servo
James Wilson
Verified Buyer
Great bang for the buck, simple install & made a big difference in a 2006 Yukon Denali. Still shifts soft enough down low for when my wife drives but a big difference in heavy throttle situations & a drop in operating temperature too. Do this to your vehicle, you won't regret it.
3 of 3 customers found this helpful.
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Great upgrade
Verified Buyer
Got the servo in a couple days. Installed this last weekend. Not to hard to install. Could definitely feel the shifts firmed up.
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Best bang for the $$
Verified Buyer
For my 2004 Yukon. This made a huge difference for how much it cost. Installed myself in about 30-40 minutes. Highly recommended. You can feel the shifts. Hopefully should add some extra life to the transmission.
4 of 4 customers found this helpful.
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