Thermostats, Housings and Fillers
Thermostats, housings, and fillers help regulate coolant flow efficiently, ensuring your engine stays within the ideal temperature range. These essential components are designed for long-lasting performance in racing environments. Fit them together with other temperature control accessories for an effective solution.
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- Price
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CVR Performance Thermostat Housing 360-Deg Swivel Black TSH6BK
CVR PERFORMANCE
$99.99A quality thermostat housing is critical for maintaining precise engine coolant temperatures, directly affecting combustion efficiency and engine longevity. The CVR Performance 360-Degree Swivel design eliminates fitment headaches by allowing you to...CVRTSH6BK- SKU:
- CVRTSH6BK
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
$99.99Qty in Cart: 0Quantity:Price:$99.99Subtotal: -
On Sale
Wehrs Water Neck Riser w/ 3/8 NPT Ports WEHWM39375
WEHRS MACHINE
MSRP: $25.99Now: $25.00Was: $25.99A water neck riser elevates your cooling system's plumbing, giving you critical clearance for headers, intake manifolds, and other underhood components without compromising flow. The dual 3/8 NPT ports provide flexible mounting options for your...WEHWM39375- SKU:
- WEHWM39375
- Availability:
- Ships Same Business Day
- Weight:
- 0.37 LBS
- MFG Part #:
- WM39375
MSRP: $25.99Now: $25.00Was: $25.99 -
On Sale
Wehrs Thermostat Riser w/ 1/4in Pipe Ports WEHWM39250
WEHRS MACHINE
MSRP: $25.99Now: $25.00Was: $25.99Precise coolant management is critical in high-performance racing engines, and a quality thermostat riser eliminates hot spots and ensures consistent water distribution across your cylinder head. The Wehrs thermostat riser with 1/4-inch pipe ports gives...WEHWM39250- SKU:
- WEHWM39250
- Availability:
- Ships Same Business Day
- Weight:
- 1.90 LBS
- MFG Part #:
- WM39250
MSRP: $25.99Now: $25.00Was: $25.99 -
Thermostat 195 Degree 302
STEWART
$35.99Maintaining optimal engine temperature is critical for consistent performance and longevity, especially under sustained racing or high-load conditions. A 195-degree thermostat keeps coolant flow precisely calibrated to prevent overcooling—which...STE302- SKU:
- STE302
- Availability:
- Ships Same Business Day
- Weight:
- 0.18 LBS
- MFG Part #:
- 302
$35.99Qty in Cart: 0Quantity:Price:$35.99Subtotal: -
Thermostat 180 Degree 301
STEWART
$34.99Maintaining optimal engine temperature is critical for maximizing horsepower, extending engine life, and preventing costly heat-related failures. The Thermostat 180 Degree 301 is a precision cooling component that opens at 180°F, allowing you to run...STE301- SKU:
- STE301
- Availability:
- Ships Same Business Day
- Weight:
- 0.18 LBS
- MFG Part #:
- 301
$34.99 -
Thermostat 160 Degree 300
STEWART
$34.99Maintaining precise coolant temperatures is critical for engine reliability and peak performance, especially in high-demand racing and modified applications. A low-temperature thermostat like this 160-degree unit allows better heat rejection during hard...STE300- SKU:
- STE300
- Availability:
- Ships Same Business Day
- Weight:
- 0.19 LBS
- MFG Part #:
- 300
$34.99 -
66-75 Chevy V8 Alum 90 Deg Water Neck Polished R6009
RACING POWER CO-PACKAGED
$44.99A quality water neck is essential for proper coolant flow and system reliability in your classic Chevy V8—especially if you're running modified cooling setups or higher RPMs. This polished aluminum 90-degree neck provides a clean, corrosion-resistant...RPCR6009- SKU:
- RPCR6009
- Availability:
- Ships Same Business Day
- Weight:
- 0.72 LBS
- MFG Part #:
- R6009
$44.99 -
66-75 Chevy V8 Alum 45 Deg Water Neck Polished R6003
RACING POWER CO-PACKAGED
$39.99A quality water neck is critical for managing coolant flow and maintaining consistent engine temperatures under sustained performance driving. This polished aluminum 45-degree neck provides a direct, low-restriction path from your radiator hose to the...RPCR6003- SKU:
- RPCR6003
- Availability:
- Ships Same Business Day
- Weight:
- 0.77 LBS
- MFG Part #:
- R6003
$39.99 -
55-64 Chevy V8 Alum Str Up Water Neck Polished R6002
RACING POWER CO-PACKAGED
$27.99A quality water neck is critical for maintaining proper coolant flow and system integrity in your classic Chevy V8. This polished aluminum piece replaces corroded or damaged factory units while providing a clean, professional appearance under the hood...RPCR6002- SKU:
- RPCR6002
- Availability:
- Ships Same Business Day
- Weight:
- 0.61 LBS
- MFG Part #:
- R6002
$27.99 -
Peterson Fluid Water Neck Riser Block 130302
PETERSON FLUID
$97.99The Peterson Fluid Water Neck Riser Block 130302 solves a critical cooling system challenge by providing a compact, CNC-ready platform to relocate your water neck and coolant ports away from high-heat engine bay congestion. This 1-inch spacer integrates...PTR10-2256- SKU:
- PTR10-2256
- Availability:
- Ships Same Business Day
- Weight:
- 0.51 LBS
- MFG Part #:
- 130302
$97.99 -
Peterson Fluid Water Neck Riser Block 128475
PETERSON FLUID
$94.99Managing coolant flow in a high-performance engine demands precision, and the Peterson Fluid Water Neck Riser Block delivers exactly that. This CNC-machined aluminum spacer elevates your water neck outlet, providing the clearance and port configuration...PTR10-2251- SKU:
- PTR10-2251
- Availability:
- Ships Same Business Day
- Weight:
- 0.42 LBS
- MFG Part #:
- 128475
$94.99Qty in Cart: 0Quantity:Price:$94.99Subtotal: -
Peterson Fluid Water Neck Riser Block 128110
PETERSON FLUID
$70.99Radiator hose connections are a critical cooling system junction point—misalignment or inadequate sealing here compromises your engine's thermal management and risks catastrophic overheating. The Peterson Fluid Water Neck Riser Block elevates your...PTR10-2250- SKU:
- PTR10-2250
- Availability:
- Ships Same Business Day
- Weight:
- 0.44 LBS
- MFG Part #:
- 128110
$70.99 -
Peterson Fluid `-20an Swivel Water Neck 80629
PETERSON FLUID
$212.99A quality water neck is critical to maintaining proper coolant flow and preventing leaks in high-performance cooling systems. The Peterson Fluid swivel design eliminates hose routing conflicts and accommodates custom intake manifold configurations,...PTR10-2120- SKU:
- PTR10-2120
- Availability:
- Ships Same Business Day
- Weight:
- 0.70 LBS
- MFG Part #:
- 80629
$212.99 -
Peterson Fluid `-16an Swivel Water Neck 79168
PETERSON FLUID
$212.99A quality water neck is essential for reliable coolant flow and engine temperature control, especially in high-performance applications where stock components can become a bottleneck. The Peterson Fluid swivel design eliminates fitting stress and...PTR10-2116- SKU:
- PTR10-2116
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- MFG Part #:
- 79168
$212.99 -
Mr. Gasket 180 Degree Thermostat 4364
MR. GASKET
$29.84A properly functioning thermostat is critical to engine health and performance. The Mr. Gasket 180 Degree Thermostat maintains optimal coolant flow and engine temperature, preventing both overheating and inefficient cold-running conditions that rob power...MRG4364- SKU:
- MRG4364
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- MFG Part #:
- 4364
$29.84 -
Mr. Gasket 160 Degree Thermostat 4363
MR. GASKET
$22.38Maintaining optimal engine temperature is critical to engine longevity, fuel efficiency, and consistent power output. The Mr. Gasket 160 Degree Thermostat is engineered to open at a lower temperature than stock units, allowing coolant to circulate sooner...MRG4363- SKU:
- MRG4363
- Availability:
- Ships Same Business Day
- Weight:
- 0.17 LBS
- MFG Part #:
- 4363
$22.38 -
Moroso Radiator Hose Filler 1.25in Hose To 1.25in Ho 63745
MOROSO
$48.99A quality radiator filler neck is critical for maintaining system integrity and preventing coolant loss during high-performance operation. The Moroso 63745 offers a direct, aluminum construction solution that eliminates weak OEM connections and reduces...MOR63745- SKU:
- MOR63745
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- MFG Part #:
- 63745
$48.99 -
Moroso Radiator Hose Filler 1.5in Hose To 1.5in Hose 63730
MOROSO
$48.99A quality radiator hose filler neck is essential for reliable coolant circulation and system integrity in high-performance applications. The Moroso 63730 provides a durable aluminum transition point between your cooling system and overflow reservoir,...MOR63730- SKU:
- MOR63730
- Availability:
- Ships Same Business Day
- Weight:
- 0.41 LBS
- MFG Part #:
- 63730
$48.99 -
Moroso Filler Neck 63486
MOROSO
$55.99A quality fuel filler neck is essential for reliable fueling, proper ventilation, and a clean engine bay aesthetic. The Moroso 63486 delivers a straightforward, durable solution with billet aluminum construction that resists corrosion and integrates...MOR63486- SKU:
- MOR63486
- Availability:
- Ships Same Business Day
- Weight:
- 0.17 LBS
- MFG Part #:
- 63486
$55.99 -
Moroso Weld-In Alum Filler Neck 63485
MOROSO
$35.99A quality fuel filler neck is foundational to any clean, functional fuel system—whether you're building a custom hot rod, fabricating a race car, or restoring a classic. This Moroso weld-in aluminum filler neck gives you a lightweight, durable solution...MOR63485- SKU:
- MOR63485
- Availability:
- Ships Same Business Day
- Weight:
- 0.09 LBS
- MFG Part #:
- 63485
$35.99
