Parts Now Pay Later with
Log In Cart
Log In
Create An Account
Log In Cart
Your Cart Is Empty
Cart Total
Edit Your Cart Checkout
Free Shipping Over $299.99

Free Shipping Over $299.99

Orders of $299.99 or more ship free within the continental U.S.
Shipping to Alaska and Hawaii is additional and not included.
We do not ship international at this time.

Shipping Policy

This part does not have vehicle specific fitment. Please contact us if you need assistance.

Mishimoto In-Line Oil Thermostat
Part Number: MMOP-EXTFC

Images may be for reference only

Mishimoto In-Line Oil Thermostat
Part Number: MMOP-EXTFC

Be the first to review!
Retail: $184.00
$167.95
Save: $16.05 (9%)

Builders Club Points

It pays to shop with K Series Parts and our reward points program! For every $1.00 you spend you earn Builders Club Points.

They are easy to earn, just log in to your account when you check out. If you don't have one it is free and easy to setup.

You will see the option to apply them at checkout just like selecting a payment option!

Builder Club Point Program Details

You earn 2 points for every $1.00 that you spend.

Maximum discount per order is 10% of the order total.

There is a minimum order total of $100 to redeem points.

Points do not apply to shipping or sales tax.

Points are not redeemable for cash.

The point value per dollar, points earned per purchase, and order minimum are subject to change.

Earn 335 Builders Club Points. Learn More

5+ In Stock
Ask us a Question

Product Details

Part Number: MMOP-EXTFC
Brand: Mishimoto

Mishimoto's New In-Line Oil Thermostat!

Features:
  • Universal fitment with a compact design, perfect for use on custom projects where space or clearance is a constraint
  • Includes 185°F (85°C) internal thermostat which accurately regulates fluid temperatures
  • Thermostat unit is easily removed and can be replaced with optional temperatures of 160°F (71°C) or 200°F (93°C)
  • Machined from billet 6061 CNC'd aluminum
  • Includes four -10AN fittings with high quality dowty seals for leak free operation
  • Included heat-sink provides unique styling and a reduction in fluid temperatures
  • Universal mounting bracket included
  • Mishimoto Lifetime Warranty

    • Due to the manufacturer's price control policy, this item may be excluded from promotions and discounts

    WARNING: This product may contain chemicals known to the State of California to cause cancer or birth defects. www.P65Warnings.ca.gov.

    Vehicle Fitment

    This part does not have vehicle specific fitment. Please contact us if you need assistance.

    Reviews ★★★★★ ★★★★★

    No Reviews Yet!

    Write a Review

    Also Bought

    Honda 02-06 Integra Type-R 6 Speed Shift Knob
    $100.46
    Honda 02-06 Integra Type-R 6 Speed Shift Knob
    ACT 00-09 S2000 Heavy Duty Street Clutch (No Bearings)
    $680.00
    ACT 00-09 S2000 Heavy Duty Street Clutch (No Bearings)
    K-Tuned K-Series Race Version Timing Chain Tensioner
    $169.99
    K-Tuned K-Series Race Version Timing Chain Tensioner
    K-Tuned Side Mount Pulley Kit: K20
    $219.99
    K-Tuned Side Mount Pulley Kit: K20
    Mishimoto Black Dual Pass Bar Plate Oil Cooler: Large
    $399.95
    Mishimoto Black Dual Pass Bar Plate Oil Cooler: Large

    Free Shipping

    K Series Parts offers free shipping for the majority of items that we sell that are shipped inside the continental United States.

    Free shipping is done by the most cost effective shipping method for each order and delivery can takes 3 to 5 days on average.

    Faster express shipping is available for an additional charge and calculated at checkout or on the edit basket page.

    Certain products are not included in the free shipping, shipped via truck freight, or fulfilled by an outside supplier.

    Alaska, Hawaii, and international orders are charged shipping and it is calculated by the website at checkout or on the edit basket page.

    Instant Discount

    Add this item to your cart to get an instant discount!

    Not Available for Pickup

    This item is not currently available for pick-up in our retail showroom and will be shipped directly to you.