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 15 - Aug 20

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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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4.1 ★★★★★
Based on 7 reviews
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Product Reviews
M
Verified Purchase
Marsha
Bozeman, US
★★★★★ 5
Funny yet good bottle opener
Size: One Size, Style: Bottle Opener
Nice rubber grip. It would be better if the metal part was one inch longer, but still very functional.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 26, 2026
M
Verified Purchase
Mr T
Draper, US
★★★★★ 5
The right tool for the job.
Size: One Size, Style: Bottle Opener, Size: One Size, Style: Bottle Opener
This is the tool you want. It is exceptionally functional, well made (made in the USA, if that matters to you), and beautiful in the way that quality tools are. The thing that really sets this tool apart is that it correctly balances form vs. function: a heavy duty build (as is the point when buying a bottle opener built by a tool company) without its use as a bottle opener (as is the point when buying ANY bottle opener) being negatively impacted by said build. I also bought the Craftsman bottle cap wrench, which, in my opinion, is hugely successful as feeling like a heavy duty tool and something of a failure as a bottle opener. It's so large and heavy, it has equal mass to the bottle you're opening. Imagine your buddy who has had one too many wielding a 12 oz. steel wrench over your tile floor, countertop, toes, etc. and you'll get the idea. Lastly, the engraving and materials on this Klein tool are so attractive I had to build it a custom wall mount instead of hiding it away in a drawer or tool chest. I will be buying a second for the office.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 20, 2016
C
Verified Purchase
Christina
Massapequa, US
★★★★★ 5
Solid Quality
Size: One Size, Style: Bottle Opener, Size: One Size, Style: Bottle Opener
Solid quality!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 31, 2026
O
Verified Purchase
Opinion
West Palm Beach, US
★★★★★ 5
Crack them bottles with Klein
Size: One Size, Style: Bottle Opener
Use regular for bottled coke. Comes in handy!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 12, 2025
C
Verified Purchase
Chris White
New York, US
★★★★★ 4
Good Tool
Size: One Size, Style: Bottle Opener
This thing is great at opening bottles, and it has a Klein handle. Perfect for the electrician in your life, even if that's yourself. I had to knock off a star because the handle is not quite as good as other Klein tools. The plastic is not as clear. The TIP-IDENT bottlecap marking is off-center and not fully printed. The bottle opener sticks out at a slight angle. This does not affect the performance, but it does detract from the novelty somewhat.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 10, 2023

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