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- USA
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Ships within 48 hours · Estimated delivery Jul 9 - Jul 14
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Description
Fleece Performance Thermostat Housing With Auxiliary Port 98.5-18 Ram 5.9L / 6.7L CumminsUpgrade the thermostat housing in your 5. 9L or 6. 7L Cummins allowing you to customize your coolant routing with the Fleece Performance Thermostat Housing With Auxiliary Port. This is the same thermostat housing that is used in Fleece's Coolant bypass kits and features an auxiliary port with plug. The auxiliary port is threaded to accept a 10AN (7 8" 14) fitting to allow you to customize your coolant routings and includes port plug if unneeded. The
Upgrade the thermostat housing in your 5.9L or 6.7L Cummins allowing you to customize your coolant routing with the Fleece Performance Thermostat Housing With Auxiliary Port. This is the same thermostat housing that is used in Fleece's Coolant bypass kits and features an auxiliary port with plug. The auxiliary port is threaded to accept a -10AN (7/8"-14) fitting to allow you to customize your coolant routings and includes port plug if unneeded. The cast aluminum construction provides strength and the Fleece logo will add a custom look to your engine bay.Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.3 ★★★★★
Based on 856 reviews
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Product Reviews
★★★★★ 5
Mock shirt for everyday wear.
Color: Gray Green, Lotus Pink, Sky Blue, Size: X-Large
Love how soft the fabric is and wears very well. Very happy with purchase and have bought other colors as well.
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Reviewed in the United States on May 22, 2026
★★★★★ 3
Amazon brand looks bad
Color: White, Light Gray, Black, Size: X-Large
II think the quality is poor the fabric is thin and the moc collar won't stand up
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Reviewed in the United States on July 20, 2025
★★★★★ 5
Satisfied
Color: Brown, White, Black, Size: Large
Nice fit and comfortable
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Reviewed in the United States on April 18, 2026
★★★★★ 5
Nice material, holds collar shape well.
Color: Wine Red, Navy Blue, Black, Size: Medium
Good value for the money. You can machine wash and dry on low heat, in my opinion. Laying flat is too much of a pain.
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Reviewed in the United States on January 30, 2026
★★★★★ 5
Great tshirts!
Color: Light Gray, Dark Gray, Black, Size: X-Large
Husband loved these tshirts.
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Reviewed in the United States on February 18, 2026
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