SKU: 94336692983

Thermostat – Fits Suzuki Outboard DF 2.5-20 HP (Replaces 17670-91J00, 17670-91J01, 17670-91J02)

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Description

Thermostat – Fits Suzuki Outboard DF 2.5-20 HP (Replaces 17670-91J00, 17670-91J01, 17670-91J02)Thermostat Fits Suzuki Outboard DF 2. 5 20 HP This replacement thermostat is designed for a range of Suzuki 4 Stroke outboard engines, including DF2. 5 (2006), DF4 DF5 DF6 (2002 and newer), and DF9. 9B DF15A DF20A (2013 and newer). It also fits select Johnson Evinrude models that use part number 5033385. Engineered as a direct replacement for Suzuki part numbers 17670 91J00, 17670 91J01, and 17670 91J02, and Johnson Evinrude part number 5033385, this

Thermostat – Fits Suzuki Outboard DF 2.5-20 HP

This replacement thermostat is designed for a range of Suzuki 4-Stroke outboard engines, including DF2.5 (2006), DF4/DF5/DF6 (2002 and newer), and DF9.9B/DF15A/DF20A (2013 and newer). It also fits select Johnson/Evinrude models that use part number 5033385.

Engineered as a direct replacement for Suzuki part numbers 17670-91J00, 17670-91J01, and 17670-91J02, and Johnson/Evinrude part number 5033385, this thermostat ensures a precise fit and reliable performance.

  • Installation Method: Direct replacement for a straightforward installation.
  • Fuel Compatibility: Designed for use with gasoline engines.
  • Quality Standard: Manufactured to meet or exceed original OEM specifications.

Part Number Cross-Reference

Use this table to confirm equivalent part numbers across OEM and aftermarket brands.

Brand Part Number
Suzuki 17670-91J00
Suzuki 17670-91J01
Suzuki 17670-91J02
Johnson/Evinrude 5033385

Compatible Engine Models

Confirm your engine model/year in the table below. For Suzuki owners, You can review exploded diagrams here to verify part numbers: Suzuki Parts Diagrams & Catalog.

Confirm your engine model/year in the table below. For Johnson/Evinrude owners, here’s a guide to help you identify your engine’s serial/model: Johnson/Evinrude Serial Number Guide.

Brand Model Rated HP Stroke Years OEM Part No.
Suzuki DF2.5 2.5 4-Stroke 2006 17670-91J00/91J01/91J02
Suzuki DF4 4 4-Stroke 2002 and newer 17670-91J00/91J01/91J02
Suzuki DF5 5 4-Stroke 2002 and newer 17670-91J00/91J01/91J02
Suzuki DF6 6 4-Stroke 2002 and newer 17670-91J00/91J01/91J02
Suzuki DF9.9B 9.9 4-Stroke 2013 and newer 17670-91J00/91J01/91J02
Suzuki DF15A 15 4-Stroke 2013 and newer 17670-91J00/91J01/91J02
Suzuki DF20A 20 4-Stroke 2013 and newer 17670-91J00/91J01/91J02

Brand OEM Part No. Notes
Johnson/Evinrude 5033385 Compatible with models using this part number

Technical Specifications

Specification Value
Product Type Outboard Engine Thermostat
Installation Direct OEM replacement
Fuel Type Gasoline
Other Technical Attributes Manufactured to OEM specifications

Package Contents

This kit includes:

  • 1 x Thermostat (Replaces Suzuki 17670-91J00 / 17670-91J01 / 17670-91J02)

Installation Guide

  1. Disconnect Power: Disconnect the negative battery cable to prevent electrical shorts.
  2. Drain Coolant: Place a drain pan under the engine and carefully drain the cooling system.
  3. Locate Housing: Identify the thermostat housing on the engine block.
  4. Remove Housing: Loosen and remove the bolts securing the thermostat housing cover.
  5. Remove Old Thermostat: Take out the old thermostat and its gasket. Note its orientation.
  6. Clean Surfaces: Thoroughly clean the gasket mating surfaces on both the housing and the engine block.
  7. Install New Thermostat: Insert the new thermostat, ensuring it is in the correct orientation. Place the new gasket in position.
  8. Reassemble: Reattach the housing cover and tighten the bolts to the manufacturer's specified torque.
  9. Refill Coolant: Refill the cooling system with the appropriate coolant mixture.
  10. Check for Leaks: Reconnect the battery, start the engine, and let it warm up. Carefully check for any coolant leaks around the housing.

Troubleshooting & FAQ

Q: How do I confirm this thermostat fits my Suzuki engine?
A: Check your engine model and year against the compatibility table. This part replaces Suzuki OEM numbers 17670-91J00, 17670-91J01, and 17670-91J02 for DF2.5 (2006), DF4/5/6 (2002+), and DF9.9B/15A/20A (2013+).

Q: Will this work for my Johnson/Evinrude outboard?
A: This thermostat is a direct replacement for Johnson/Evinrude part number 5033385. Please verify this is the correct part number for your specific model, as we do not have a detailed model list for Johnson/Evinrude compatibility.

Q: What are the signs of a failing thermostat?
A: Common signs include the engine overheating, the engine not reaching its proper operating temperature (running too cold), or erratic temperature gauge readings. Failure to replace a faulty thermostat can lead to poor engine performance and potential damage.

Q: OEM vs. Aftermarket?
A: This listing is an aftermarket replacement part (not an OEM component). We build to OEM specifications using comparable-grade materials. Production is done in an ISO9002-certified facility, and each batch is inspected for consistent performance.

Q: How fast do you ship and how much does it cost?
A: We offer fast global shipping—typically 5–15 days worldwide—and standard shipping is free. Expedited options are available at checkout depending on your location.

Q: What is your warranty and return policy?
A: This product includes a 1-year warranty against manufacturing defects under normal use. If something goes wrong, contact our support team with your order details. Returns are accepted within our standard return window (unused & in original condition); please see our policy page or reach out for instructions.

Important Notes

  • Verify that the product images and specifications match your original part. If discrepancies exist—even if your model is listed—do not proceed with the purchase.
  • This product is an aftermarket replacement part and is not an OEM component.
  • Professional installation is recommended to ensure safety and optimal performance.

Why Choose JLM MARINE?

  • Quality Assured: As a trusted manufacturer for over 20 years, we supply top marine brands globally.
  • Fast Global Shipping: Free delivery worldwide in 5–15 days.
  • Direct from Manufacturer: Competitive pricing without compromising quality.
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: 94336692983

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