12447076 / 01-456-6257 / 4820-01-456-6257 - VALVE, TRANSMISSION OIL COOLER (BYPASS)

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12447076 / 01-456-6257

VALVE, TRANSMISSION OIL COOLER (BYPASS)

On Sale: $89.99 MSRP: $141.62

Qty in Stock
Condition: NEW
Unit of Measure: EACH
Brand
NSN: 4820-01-456-6257
Package Note: This item ships in its own box
Handling Note: This part requires a special $0 handling for each item
Part Fitment?: Click tab below for unique model details
Important Note!: Click tab below for Important or additional notes

Reorder Alert: Reorder QTY Not Set, Please Tell HPG!

Question about this item? Ask here...

IMPORTANT PART NOTE:

NO ADDITIONAL DETAILS AVAILABLE AT THIS TIME

ADDITIONAL PART NOTE:

The transmission oil cooler bypass valve is positioned between the transmission and transfer case cooler in the fluid line. The unit is rigidly mounted to the fame rail and is connected in parallel by hoses to the transmission cooler. The valve consists of a housing with inlet and outlet fittings, and an internal flow control valve, spring loaded in the closed position. This valve is designed to begin opening at approximately 20 psi and be fully open by 30 psi allowing fluid to bypass the transmission cooler and regulate fluid pressure in the cooler. At low temperature fluid viscosity and pressure are typically high. By allowing fluid to bypass the cooler at low temperatures the transmission warms to normal operating temperature quicker. At high temperatures, fluid viscosity decreases and more fluid circulates through the cooler, maintaining an even operating temperature and a constant pressure in the cooler.

HPG ETM (ELECTRONIC TECH MANUAL) LOCATIONS - IF AVAILABLE. CLICK ON THE LINK TO VIEW A VISUAL LOCATION FOR THAT ITEM.

HUMMER PARTS > MAINTENANCE > TRANSMISSION

HMMWV PARTS > MAINTENANCE > TRANSMISSION

HPG ETM > HUMMER > 1992 6.2L DIESEL > TRANSMISSION AND TRANSFER CASE > TRANSMISSION TRANSFER CASE COOLING LINES

HPG ETM > HUMMER > 1993 6.2L DIESEL > TRANSMISSION AND TRANSFER CASE > TRANSMISSION TRANSFER CASE COOLING LINES

HPG ETM > HMMWV > 6.5L TURBO DIESEL > TRANSMISSION 4L80E > 100 - TRANSMISSION/TRANSFER COOLING LINES (SERIAL NUMBER 299999 AND BELOW)

HPG ETM > HMMWV > 6.5L TURBO DIESEL > TRANSMISSION 4L80E > 100A- TRANSMISSION/TRANSFER COOLING LINES (SERIAL NUMBER 300000 AND ABOVE)

END OF YEAR SALE

BELOW ARE THIS PART'S MATCHED USED ON CODES (UOC) TO DETERMINE PROPER FITMENT. THESE CODES ARE CONSTANTLY BEING UPDATED. CONTACT US IF YOU HAVE QUESTIONS.

NOTE: Part data was compiled by HPG. Please don't copy it for eBay listings, your website or anything else. Karma will hunt you down if you decide to copy it.

BELOW ARE THIS PART'S MATCHED USED ON CODES (UOC) TO DETERMINE PROPER FITMENT. THESE CODES ARE CONSTANTLY BEING UPDATED. CONTACT US IF YOU HAVE QUESTIONS. HOVER OVER THE MODEL TO SEE ADDITIONAL DETAILS

NOTE: Part data was compiled by HPG. Please don't copy it for eBay listings, your website or anything else. Karma will hunt you down if you decide to copy it.

12447076 / 01-456-6257

VALVE, TRANSMISSION OIL COOLER (BYPASS)

In Stock @ HPG (WI Warehouse)

[ITEMPRICE] ~~[ITEMPRICE]~~ [ITEMSALEPRICE]

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Do I have a Hummer H1 or Military Humvee? Does it really matter...

Answer: YES

While some parts will fit either chassis there are certain unique parts and if you incorrectly interchange them THEY WILL NOT FIT. (pause and re-read that again)

The key difference, and it makes the whole experience better in buying and owning your vehicle, starts with the VIN or SERIAL Number. KNOW WHAT YOU OWN. You do NOT own a 1989 Hummer H1...you own a 1989 Humvee. You do NOT own a 2004 M1123 Hummer H1..you own a 2004 M1123 Humvee. So knowing you have a 1996 Humvee or 1996 Hummer H1 you can now properly get the correct fan clutch (because there are 4 clutch options)...get it?

Hummer H1: Vin starts with 137# (#= D, F, L, P, X, Y OR Z ) Total of 17 digits. Example 137YA8338TE123456. Vin is located on the windshield frame, frame rail and door frame. This vehicle was DOT certified/crash tested, is ONLY 12V and meant for the highway/offroad.

Military Humvee: Serial numbers are 6 numeric digits located on the driver door data plate, next to the body style tag MXXXX. (Example: 125611, M998). Unless you are armed forces this is a military surplus vehicle, is ONLY 24V from the factory and meant for battle.

VALVE, TRANSMISSION OIL COOLER (BYPASS)

PART INVESTIGATION:

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ADDITIONAL PART NOTE: