SKU: 69835039697

Fleece Performance FPE-CUMM-SSHCL-12V Replacement Heater Core Line Kit For 89-98 12 Valve Cummins Fleece Performance

$170.55 $189.50
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Ships within 48 hours · Estimated delivery Aug 5 - Aug 10

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Description

Fleece Performance FPE-CUMM-SSHCL-12V Replacement Heater Core Line Kit For 89-98 12 Valve Cummins Fleece PerformanceReplace your leaking or corroded heater tubes with our upgraded stainless steel tubes and high temperature silicone hose kit from Fleece Performance. This kit contains everything you need to replace your heater lines from the block to the firewall. This kit is designed as a direct replacement for all trucks originally equipped with air conditioning. Kit includes: Stainless steel heater tube replaces Cummins 3912086 Stainless steel heater tube replaces

Replace your leaking or corroded heater tubes with our upgraded stainless steel tubes and high temperature silicone hose kit from Fleece Performance. This kit contains everything you need to replace your heater lines from the block to the firewall.

This kit is designed as a direct replacement for all trucks originally equipped with air conditioning.

Kit includes:

  • Stainless steel heater tube - replaces Cummins 3912086
  • Stainless steel heater tube - replaces Cummins 3912087
  • Silicone heater hose (straight tube to block) - replaces Cummins 3931522
  • Silicone heater hose (90 deg tube to block) - replaces Cummins 3957649
  • Silicone heater hoses (45 deg tubes to firewall)
  • Anodized billet aluminum hold down clamps, billet aluminum standoff, and mounting hardware for both stock and aftermarket manifolds
  • Hose clamps

Application Notes:
This kit is intended for use with trucks originally equipped with air-conditioning. If your truck is not equipped with air conditioning, you will need to supply your own 5/8 inch ID hose to run from the firewall ports to the stainless steel heater lines. 
The silicone heater hose (tube to firewall) may require trimming for certain applications or to accommodate modifications made previously to the engine. 
If your truck is equipped with an aftermarket exhaust manifold, the rear heater line standoff will not be utilized and an additional mounting bracket is provided.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 69835039697

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4.6 ★★★★★
Based on 20 reviews
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Verified Purchase
Luis Carrillo
Lexington, US
★★★★★ 5
Great quality. Don’t think it twice and buy!
Size: 100 Count
When I bought this plates I was not so sure of the quality of the material however, they exceeded my expectations. They are thick and durable. The design and color were perfect and matched with my decoration. The amount of plates for the value was a great deal and I will definitely buy them again and again. Trust me when I say I don’t like most of the disposable paper plates out there and this make a huge difference with how good quality they are and how inexpensive they’re.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 20, 2026
J
Verified Purchase
Jake Rider
Cuba, US
★★★★★ 5
Strong Enough for Everyday Use, No Surprises
Size: 150 Count (Pack of 1)
These are exactly what you want from everyday disposable plates. They’re sturdy enough to handle normal meals without bending or soaking through, even with heavier or messier foods. I’ve used them for things like pasta and leftovers, and they held up better than expected for a budget option. The 10-inch size is a good middle ground, big enough for full meals but not oversized. They also hold up fine in the microwave without getting too soft. They’re still paper plates at the end of the day, so if you’re loading them up with really heavy or greasy food, you might want to double up just to be safe. Overall, these are a reliable, no-frills option that works well for daily use, gatherings, or quick cleanup situations.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 18, 2026
N
Verified Purchase
Nicole Fors
Draper, US
★★★★★ 5
Thick and durable
Size: 100 Count
Very heavy and good quality. Don't bend. Good price for the quantity.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 30, 2026
A
Verified Purchase
Avid Reader
Carnegie, US
★★★★★ 4
Would have liked more sturdy
Size: 150 Count (Pack of 1)
We’re not as sturdy as I would have liked
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 16, 2026
J
Verified Purchase
JAH
Cuba, US
★★★★★ 5
Good paper bowls & a great deal.
Size: 100 Count
Strong, soak proof and grease resistant. I was going to order Dixie plates and these popped up and were a better deal.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 27, 2026

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