0
No Products
XDP Thermostat Housing Bolt Kit (Black-Phosphate) XD688
PART#
XD688 | SKU XD688
★★★★★
Vehicle Fitment For:
1998.5-2018 Dodge Ram With 5.9L/6.7L Cummins Engine
See full application list below
$12.95
Ground Delivery by ,
If you order within hr min
This product cannot be shipped to your destination
Not Shipping to ?
Need it faster?
Description
The XDP Thermostat Housing Bolt Kit (Black-Phosphate) XD688 replaces the old, rusted bolts on your Dodge Ram 5.9 or 6.7 diesel thermostat housing. These durable replacement bolts will help hold down your thermostat housing and prevent coolant leaks. These bolts have a tough black phosphate coating to resist the elements. This long-lasting coating provides superior anti-galling abilities, increased adhesion, and corrosion resistance. This kit includes 3 replacement bolts.
Features:
- Direct-Fit
- Durable Construction
- Durable Black-Phosphate Coating
- Includes (3) Three Replacement Bolts
Manufacturer Warranty*:
2 Year / Unlimited Mileage
2 Year / Unlimited Mileage
Disclaimer: XDP is in no way affiliated with Cummins or any of its subsidiaries or related companies, and that Cummins has not authorized the sale of any of XDP's parts, and has not tested or approved any of XDP’s parts for use in genuine Cummins brand products.
Reviews For XDP XD688
Overall Rating
/5
1 Review
Rating Snapshot
0
0
0
0
1
Wrong Product
Mario (CA) | April 25th, 2026
Do not buy these for your 24v VP44 truck. They do not fit and are too short. They are 20mm long and need to be about 25mm long to reach through the housing and tighten down.
Note From Store Owner: Thank you for taking the time to share your feedback. We're sorry to hear that the item didn’t fit as expected. This can certainly be frustrating, and we understand your disappointment. This is not the experience we want for our customers, and we’re addressing this issue to help prevent it from happening again. If there's anything we can do to make things right, please don’t hesitate to reach out to our Customer Service Team using the help desk feature on our website.
Write a Review
Review this product and help other XDP customers make informed decisions!
Frequently Asked Questions
What is the torque spec for the thermostat housing bolts?
The torque specification for the Dodge Ram 5.9L/6.7L thermostat housing bolts is 18-ft-lbs.
Ask A Question
Ask a question about this product
Please allow up to 1 business day for reply.
Specifications For XDP XD688
MPN
XD688
SKU
XD688
ID
151018
Manufacturer Name
XDP
Shipping Weight
1.00 lb.
Shipping Length
6 in.
Shipping Width
3 in.
Shipping Height
1 in.
Fuel Type
Diesel
E-Code
1
Manufacturer Warranty*
2 Year / Unlimited Mileage
Prop 65
WARNING: Cancer & Reproductive Harm - P65Warnings.ca.gov
WARNING: Cancer & Reproductive Harm - P65Warnings.ca.gov
Cross Reference #
3901865, 5445368
Internal
L0R46
ITEM ADDED TO CART
Complete the job with these highly suggested add-on products.
Product prices marked with an * may require additonal fees, such as a core charge, which will be displayed in the cart.