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  3. GATES SX-3778

GATES SX-3778 Engine Coolant Thermostat Cooling Wj 3.7L L6

fits make: Dodge. year: 1967.

Sx-3778 Gates Engine Coolant Thermostat For 1967 Dodge W100 Series 3.7l L6 Cooling Wj

( Brand: Gates ), ( Manufacturer Part Number: SX-3778 ), ( Type: Engine Coolant Thermostat ), ( Placement On Vehicle: Belts Cooling Thermostat Housing ), ( Manufacturer Warranty: Recommended Service Interval ), ( Item Height: 2.750 ), ( Ipn: C856 51-53 ), ( Compatible Model: W100 Series ), ( Core Charge: Free No Core Charge ), ( Fitment Type: Direct Replacement ), ( Bundle Description: 1 Pc Genuine Gates Engine Coolant Thermostat )

Review GATES Engine Coolant Thermostat For Dodge Series 3.7l L6 Cooling Wj fits W100 1967

Introducing the Gates SX-3778 Engine Coolant Thermostat, specifically engineered for the 1967 Dodge W100 3.7L L6 cooling system with the WJ engine code. This thermostat is a crucial component in maintaining the optimal operating temperature of your engine, ensuring its longevity and efficient performance.

The Gates SX-3778 is a high-quality, OE-style engine coolant thermostat, designed to meet or exceed the original equipment performance. It features a precision-machined housing and a durable, corrosion-resistant stainless steel thermostat housing. The thermostat is designed to open at an engine temperature of approximately 180 F (82 C), allowing coolant to circulate through the engine to help it heat up efficiently. Once the engine has reached its optimal operating temperature, the thermostat closes to maintain that temperature, preventing the engine from overheating.

The Gates SX-3778 thermostat comes with a built-in bypass valve, which allows coolant to flow through the engine even when the thermostat is closed, ensuring that the engine is always receiving cooling circulation, even during start-up or when the engine is idling. This can help reduce engine wear and improve cold start performance.

The Gates SX-3778 Engine Coolant Thermostat is also easy to install, with a simple bolt-on design that requires no special tools or modifications to your cooling system. It comes with all necessary hardware, including new gaskets, making it a complete replacement solution for your old, worn-out thermostat.

In summary, the Gates SX-3778 Engine Coolant Thermostat is a high-quality, OE-style replacement thermostat designed specifically for the 1967 Dodge W100 3.7L L6 cooling system. It features precision machining, durable corrosion-resistant materials, and a built-in bypass valve for improved engine performance and ease of installation.

The Gates SX-3778 engine coolant thermostat is a replacement option for the cooling system of a 1967 Dodge W100 3.7L L6 engine. Here are some pros and cons that may help you make an informed decision on whether to purchase this thermostat.

Pros:

1. Gates is a reputable brand known for producing high-quality automotive parts.

2. This thermostat is specifically designed for the 1967 Dodge W100 3.7L L6 engine, ensuring a proper fit.

3. The SX-3778 thermostat is designed to help maintain optimal engine temperature for efficient performance and longer engine life.

4. It comes with a standard 1-year limited warranty.

Cons:

1. Some customers have reported that the thermostat may not function as expected or may leak after a short period of time.

2. Installation may require some mechanical skills and experience.

3. The price point is slightly higher than some other aftermarket options.

In conclusion, the Gates SX-3778 engine coolant thermostat is a reliable option for those looking for a replacement thermostat for their 1967 Dodge W100 3.7L L6 engine. While there are some reports of potential issues, Gates' reputation for quality and the thermostat's specific design for the engine make it a worthwhile consideration. However, those with limited mechanical skills or budget constraints may want to explore other options. Ultimately, the decision to purchase this thermostat depends on individual preferences and requirements.

Recommendation:

If you are comfortable with the potential risks and have the necessary mechanical skills, the Gates SX-3778 engine coolant thermostat is a recommended option for those seeking a high-quality replacement thermostat for their 1967 Dodge W100 3.7L L6 engine. However, if you are unsure or have limited mechanical skills, it may be worth exploring other options or consulting a professional mechanic before making a purchase.

Details:

Gates Engine Coolant Thermostat for 1967 Dodge W100 Series 3.7L L6 Cooling wj: Status: In Stock.

part #: sx3778 prices

  • $14.22-$23.86

specifications radiatoranch:

  • for makes: Dodge
  • for years: 1967
  • brand: Gates
  • mpn: Sx-3778
  • type: Engine Coolant Thermostat
  • placement on vehicle: Belts Cooling Thermostat Housing
  • manufacturer warranty: Recommended Service Interval
  • item height: 2.750
  • ipn: C856 51-53
  • compatible model: W100 Series
  • core charge: Free No Core Charge
  • fitment type: Direct Replacement
  • bundle description: 1 Pc Genuine Gates Engine Coolant Thermostat

payments radiatoranch:

  • other
  • wallet: Google-pay
  • credit card: Diners-club

general radiatoranch:

  • condition: New
  • Car Truck Parts Accessories > Engine Cooling Components > Radiators

returns radiatoranch:

  • paid by: Seller
  • policy: Returns Accepted
  • time: 30 Days

offer radiatoranch:

  • availability: In Stock
  • options: Ship-to-home
  • quantity: 10
  • started: January 11, 2026
  • sold: 0

shipping radiatoranch:

  • service: Standard, Expedited
  • transit: 3-6 Days
  • class: Standard, Expedited
  • cost: $0.00
  • type: Fixed

seller radiatoranch:

  • city: Indianapolis, Indiana
  • # reviews: 611544
  • rating: 99.4%
for makes: dodge, for years: 1967, type: engine coolant thermostat, placement on vehicle: belts cooling thermostat housing, manufacturer warranty: recommended service interval, item height: 2.750, compatible model: w100 series, core charge: free no core charge, fitment type: direct replacement, bundle description: 1 pc genuine gates engine coolant thermostat,
category: auto parts > car truck parts accessories > engine cooling components > radiators, sku: 11265145415729792,

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