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Hard Parts

700R4 Pump 1982-96

$69.72
In stock • ships from the USA

700R4 Pump 1982-96, new and ready to install. Fits the 700R4. Ships fast from the USA.

Fits these transmissions
Secure Stripe checkout • free shipping over $100 • 30-day returns
Secure Stripe checkout
Ships from the USA
30-day returns

About this product

When a 700R4 pump whines, loses pressure when hot or spits broken ring pieces into the pan, the cover and body are often still usable and the wear is in the rotating parts. This kit replaces those parts: a new 10-vane rotor, outer slide, vanes, plastic vane guide and two hardened vane rings, for 1982-1996 700R4, 4L60 and 200-4R pumps. It is the rebuild path for a pump you are keeping, not a complete pump assembly.

What is in the kit

The 10-vane rotor is a direct replacement in a 10-vane pump and an upgrade over the early 7-vane rotor.

What these parts do in a 700R4 pump

The 700R4 uses a variable-displacement vane pump driven by the converter hub. The rotor carries the vanes in slots, the two rings inside the rotor hold the vanes out against the slide, and the slide pivots under priming spring force and regulator pressure to change how much oil the pump moves. When the rings crack or the vanes and slide wear, the pump cannot build full volume, and every clutch, band and shift signal downstream gets less pressure. Broken rings are a classic failure here, and the pieces can take out the converter and other parts with them.

Symptoms of worn rotor parts

These transmissions are hydraulically controlled, so a failing pump does not set codes; a line pressure gauge and a look at the pan tell the story.

How to confirm before you buy

Gauge line pressure at idle and with the TV cable pulled, then pull the pan and look for metal. Once the pump is out, check the slide for scoring and a sticking pivot, and inspect the rings and vanes for cracks and chipped edges. If the pocket in the pump body is scored or the stator tube leaks, a rotor kit will not save it. Our 700R4 pump failure guide covers the slide, ring and cross-leak checks, and the 700R4 common problems guide covers the other causes of low pressure.

Fitment

This kit fits 700R4, 4L60 and 200-4R pumps from 1982 to 1996 that use a 10-vane rotor, and it can replace a 7-vane rotor group as an upgrade. Count the vanes in your rotor before you order, because 700R4 pumps were built with 7, 10 and 13-vane rotors and their parts do not mix. If your pump is a 13-vane design or you are unsure what you have, send us the year and VIN or the pump casting numbers. Browse the 700R4 parts collection for the rest of the unit.

Install notes


Specifications

Fits700R4 1982-96
Part typePump
ConditionNew
BrandOEM
ShipsFrom the USA
Warranty1-year

Complete the job: parts that go with this

Doing this repair right usually means replacing these at the same time. Same transmission, ships together.

700R4 Overhaul Kit
700R4 Overhaul Kit
$60.99

700R4 Pump 1982-96: common questions

Is this a complete 700R4 pump?

No. It is the rotating group: a 10-vane rotor, slide, ten vanes, plastic guide and two hardened rings. You reuse your pump body and stator support.

Will this kit fit my 7-vane pump?

It is sold as an upgrade from the early 7-vane rotor, and it includes the matching slide, guide and rings. Count your vanes and inspect the pump body pocket before ordering.

Does it fit a 13-vane 700R4 pump?

It is a 10-vane kit. If your pump has a 13-vane rotor, do not mix in these parts; send us your casting numbers or year and VIN so we can confirm the right parts.

What priming springs should I use with a 10-vane rotor?

TransGo's 700 pump kit instructions say pumps with a 10-vane rotor run both priming springs.

What else should I replace when rebuilding the pump?

A front seal, pump gasket and O-ring, the pump bushing if it is worn, and the sealing rings. Inspect the converter hub and the stator tube for leaks.

What fluid should I use after the rebuild?

Dexron ATF. Current Dexron-VI is backward compatible with the older Dexron specs.


Repair guides for this job

Sources
  1. TransGo — 700 PK NoYoYo Standard Pump Kit instructions (IS-700-PK). Priming spring setup by 7, 10 and 13-vane rotor, ring failure and the vane break-in flat procedure. res.cloudinary.com/transgo/wbiss/sc/700_PK.pdf
  2. Sonnax — All Over the Map: Attacking 4L60/E Burnt 3-4 Clutches with Confidence. Pump slide binding and low line pressure as a cause of burnt 3-4 clutches. www.sonnax.com/tech_resources/659-all-over-the-map-attacking-4l60-e-burnt-3-4-clutches-with-confidence
  3. Sonnax — 4L60/E Pump Cover and Stator Tube: Finding Hidden Leaks with Individual Vacuum Testing. Cover and stator tube leaks that a rotor kit will not fix. www.sonnax.com/tech_resources/1616-4l60-e-pump-cover-stator-tube-finding-hidden-leaks-with-individual-vacuum-testing

700R4 Pump 1982-96

$69.72
In stock • ships from the USA • 30-day returns

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