What steps should be taken if a Transmission Oil Cooler develops a leak on the Nissan Quest?

An oil cooler integrated with the transaxle is available in the left side radiator tank. If it develops a leak, and the signs are coolant in the transaxle fluid or transaxle fluid in the engine coolant, proceed to also remove the radiator and then to a radiator repair shop. Also, ensure that one replaces the transaxle fluid and filter and change the engine coolant if one was to be present in a leakage.

Genuine Nissan Quest Transmission Oil Cooler

Trans Oil Cooler

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9 Transmission Oil Coolers found

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Nissan Quest Cooler Assembly-Auto Transmission Oil
Part Number: 21606-28X0B
$488.57 MSRP: $690.06
You Save: $201.49 (30%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Oil Cooler Assy-Auto Transmission; Oil Cooler, Transmission Cooler
- Warranty: This genuine part is guaranteed by Nissan's factory warranty.
Fits the following Vehicles:
- 2014-2017 Nissan Quest | LE, S, SL, SV | 6 Cyl 3.5L | VQ35DE
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Nissan Quest Cooler Assembly-Auto Transmission
Part Number: 21606-8Y000
$706.60 MSRP: $998.02
You Save: $291.42 (30%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Oil Cooler Assy-Auto Transmission; Transmission Cooler
- Warranty: This genuine part is guaranteed by Nissan's factory warranty.
Fits the following Vehicles:
- 2004-2010 Nissan Quest | Base, S, SE, SL | 6 Cyl 3.5L | VQ35DE
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Nissan Quest Cooler Assembly-Oil
Part Number: 21606-89X01
Product Specifications
- Other Name: Oil Cooler Assy; Transmission Cooler
- Warranty: This genuine part is guaranteed by Nissan's factory warranty.
Fits the following Vehicles:
- 2004-2007 Nissan Quest | S | 6 Cyl 3.5L | VQ35DE
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Nissan Quest Cooler Kit-Auto Transmission Oil
Part Number: 21606-1B000
Product Specifications
- Other Name: Oil Cooler Kit-Auto Transmission; Transmission Cooler
- Warranty: This genuine part is guaranteed by Nissan's factory warranty.
Fits the following Vehicles:
- 1997-1998 Nissan Quest | GXE, XE | 6 Cyl 3.0L | VG30E
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Nissan Quest Cooler Kit-Auto Transmission Oil
Part Number: 21606-7B001
Product Specifications
- Other Name: Oil Cooler Kit-Auto Transmission
- Warranty: This genuine part is guaranteed by Nissan's factory warranty.
Fits the following Vehicles:
- 1999-2003 Nissan Quest | GXE, SE | 6 Cyl 3.3L | VG33E
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Nissan Quest Cooler Kit-Auto Transmission Oil
Part Number: 21606-0B025
Product Specifications
- Other Name: Oil Cooler Kit-Auto Transmission; Transmission Cooler
- Warranty: This genuine part is guaranteed by Nissan's factory warranty.
Fits the following Vehicles:
- 1993-1996 Nissan Quest | GXE, XE | 6 Cyl 3.0L | VG30E
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Nissan Quest Cooler Kit-Auto Transmission Oil
Part Number: 21606-1B025
Product Specifications
- Other Name: Oil Cooler Kit-Auto Transmission; Transmission Cooler
- Warranty: This genuine part is guaranteed by Nissan's factory warranty.
Fits the following Vehicles:
- 1995-1998 Nissan Quest | GXE, XE | 6 Cyl 3.0L | VG30E
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Nissan Quest Cooler Assembly-Oil
Part Number: 21606-89X00
Product Specifications
- Other Name: Oil Cooler Assy; Transmission Cooler
- Warranty: This genuine part is guaranteed by Nissan's factory warranty.
Fits the following Vehicles:
- 2004-2005 Nissan Quest | S, SL | 6 Cyl 3.5L | VQ35DE
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Nissan Quest Cooler Assembly-Auto Trans Oil
Part Number: 21606-1XE0A
Product Specifications
- Other Name: Oil Cooler Assy-Auto Transmission; Transmission Cooler
- Warranty: This genuine part is guaranteed by Nissan's factory warranty.
Fits the following Vehicles:
- 2011-2015 Nissan Quest | LE, S, SL, SV | 6 Cyl 3.5L | VQ35DE

Nissan Quest Transmission Oil Cooler

By maintaining proper temperatures, the Nissan Quest Transmission Oil Cooler helps the minivan's driveline fluid maintain stable operation. The Transmission Oil Cooler directs heated lubricant through a compact oil-to-water exchanger connected to the vehicle's radiator circuit. This device quickly raises fluid temperature to optimal working temperature. Further, it allows the fluid to avoid temperature spikes while traversing steep grades. Both the early Quest editions and later generations utilize the same integrated design for the Transmission Oil Cooler. However, real-world implementation has demonstrated that the efficiency of this design can only be achieved when the path for coolant flow remains clean and unobstructed. If the coolant becomes sludged, heat exchange will reduce, the fluid temperature of the component will rise, and the core will suffer internal corrosion, which causes a hole to be perforated. This will allow the oil to get into the antifreeze or the water to enter the transmission circuit. With these risks in mind, every Quest owner who adheres to Nissan service intervals benefits from fresh coolant in the system and being leak-free so that the Transmission Oil Cooler can continue to shield vulnerable clutches and seals from thermal breakdown. Many drivers trust their Nissan for long family trips; one reason is the dedicated Transmission Oil Cooler.

If you need any OEM Nissan Quest Transmission Oil Cooler, feel free to choose them out of our huge selection of genuine Nissan Quest Transmission Oil Cooler. All our parts are offered at unbeatable prices and are supported by the manufacturer's warranty. In addition, we offer quick shipping to have your parts delivered to your door step in a matter of days.

Nissan Quest Transmission Oil Cooler Parts Questions & Experts Answers

Cooler Kit-Auto Transmission Oil
21606-0B025
Q: What steps should be taken if a Transmission Oil Cooler develops a leak on the Nissan Quest?
A:
An oil cooler integrated with the transaxle is available in the left side radiator tank. If it develops a leak, and the signs are coolant in the transaxle fluid or transaxle fluid in the engine coolant, proceed to also remove the radiator and then to a radiator repair shop. Also, ensure that one replaces the transaxle fluid and filter and change the engine coolant if one was to be present in a leakage.