Description
The Phoenix USA NH8494 20mm x 1-5/8″ Hex Jam Nut (PNH8490JNT) is a crucial component specifically engineered for use with Phoenix USA’s dual wheel simulator systems, most notably within the NH8494 and NH4860 series kits. This shouldered, double-shouldered hex jam nut ensures a secure and precise fit for your wheel simulators on a range of vehicles, including select Ford, Chevrolet, and Freightliner truck models. Designed to meet the exacting standards of Phoenix USA, this part plays a vital role in maintaining the integrity and appearance of your dual wheel setup.
KEY FEATURES AND BENEFITS:
- 20mm Thread Diameter: Fits standard wheel studs on compatible vehicle models.
- 1-5/8″ Hex Size: Allows for effective tightening and loosening with common tools.
- Shouldered Design: Double-shouldered build promotes optimal alignment and stability.
- Durable Build: Made from robust materials (often brass in appearance) to withstand road and weather conditions.
- Compatible Fit: Specifically designed to match Phoenix USA NH8494 and NH4860 series kits for accurate and secure installation.
- OEM Replacement: Ideal for replacing damaged or missing jam nuts without compromising performance or appearance.
SPECIFICATIONS:
- Product Name: Phoenix USA Jam Nut, Shouldered
- Manufacturer Part Number (MPN): PNH8490JNT
- Inner Thread Diameter: 20 mm
- Length: Approximately 1-5/8 inches (41 mm)
- Height/Thickness: Approximately 23 mm (0.94 inches)
- Hex Size: 41 mm (1-5/8 inches)
- Material: Likely Brass (based on color indication)
- Design: Shouldered, Double Shouldered
- Weight: Approximately 0.38 lbs
- Approximate Dimensions: 1.63″ (Length) x 1.63″ (Width) x 0.94″ (Height)
- Compatibility: Phoenix USA NH8494, NH4860, NH4860F, NH4860R, NH8494F, NH8494R kits; select Ford vehicles
- Sold As: Individual unit
HOW TO USE:
- Position the Wheel Simulator: Align the Phoenix USA wheel simulator over the wheel studs.
- Thread the Jam Nut: Begin threading the PNH8490JNT jam nut onto one of the wheel studs by hand.
- Hand-Tighten: Rotate until the nut is snug against the wheel simulator.
- Use a Wrench: Using a 41 mm or 1-5/8″ wrench, securely tighten the jam nut. Refer to your simulator kit’s guide for torque specs.
- Repeat: If more jam nuts are needed, repeat the process for each stud.
- Final Check: Ensure the simulator is tightly secured and properly aligned before use.
BENEFITS OF USING THE PHOENIX USA NH8494 20MM X 1-5/8″ HEX JAM NUT (PNH8490JNT):
- Provides a secure, manufacturer-approved attachment method for Phoenix USA dual wheel simulators.
- Maintains proper alignment and positioning of simulators for safety and visual appeal.
- Prevents simulator detachment or vibration during operation.
- Supports the overall longevity and performance of your wheel simulator system.
- Preserves the original look and integrity of your Phoenix USA simulator kit with a genuine replacement part.
FEATURES:
- Double Shouldered Configuration: Enhances structural integrity and grip.
- Durable Construction: Built to withstand road stress and corrosion.
- Guaranteed Compatibility: Seamless fit with Phoenix USA NH8494 and NH4860 kits.
- Essential for Secure Mounting: Key component in maintaining safe wheel simulator attachment.
- Direct Replacement Part: Easily replaces damaged or lost original jam nuts.
- Facilitates Proper Simulator Function: Supports alignment, appearance, and protection of your simulator system.
- Individually Sold: Cost-effective single unit purchase for targeted replacement.






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