4.0l Oil Pump Bolt Sizes

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Sep 14, 2015 | 04:49 AM

EZRider

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Joined: Dec 2013

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Model: Cherokee

4.0l Oil Pump Bolt Sizes

I lost the bolts that mount the oil pump to my 4.0l block. does anybody know what size bolts they are? I tried looking in a parts diagram but no luck.

Sep 14, 2015 | 07:05 AM

CCKen

CF Veteran

Joined: Aug 2010

Posts: 8,357

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From: Canton, MI

Year: 1999

Model: Cherokee

Engine: 4.0

What year is the engine/block?

Edit: You should fill out your Jeep info under User CP. or put it in your signature.

Last edited by CCKen; Sep 14, 2015 at 07:07 AM.

Sep 14, 2015 | 07:15 AM

lpresnell

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Joined: Jul 2015

Posts: 36

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From: Western NC

Year: 2000 & 1997

Model: Grand Cherokee

Engine: 4.0

4.0l Oil Pump Bolt Sizes

I need to know also, mine is a 2000 GC.

Sep 14, 2015 | 07:27 AM

EZRider

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Model: Cherokee

Quote:

Originally Posted by CCKen

What year is the engine/block?

Edit: You should fill out your Jeep info under User CP. or put it in your signature.

1996 engine. Xj

Sep 14, 2015 | 08:25 AM

CCKen

CF Veteran

Joined: Aug 2010

Posts: 8,357

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From: Canton, MI

Year: 1999

Model: Cherokee

Engine: 4.0

Long bolt is .312-18x2.625", also needs a flat washer and a lock washer.

Short bolt is .312-18x1.00", also needs a flat washer only.

Suggest Grade 8 hardware.

Edit: For the 2.625" (2-5/8") to may have to buy a (5/16-18) 2-3/4" or 3" bolt and cut it down to 2-5/8" OAL from under the head. 1" bolts should be a common stock item at the hardware stores.

Last edited by CCKen; Sep 14, 2015 at 09:02 AM.