Monroe 908978 Coil Spring Insulator - Front Upper

Brand	Monroe 908978
Position	Front Upper
Product line	Strut-Mate Coil Spring Insulator
Fits	Hyundai and Kia · 12 vehicles

Noise and vibration reduction. Helps complement ride control for a quieter, smoother suspension.

Strut-Mate mounting kit. A matching suspension component for Monroe struts.

Coil spring insulator. Helps isolate the spring for improved comfort and control.

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Monroe Strut-Mate Coil Spring Insulator 908978

Monroe Strut-Mate Coil Spring Insulator 908978 is a front upper suspension insulator for select Hyundai Sonata and Kia Optima applications. It is used with Monroe struts to reduce noise and vibration at the strut mount area.

Key Features

Front upper coil spring insulator for suspension service
Supports quieter operation by isolating spring-to-seat contact
Matches Monroe Strut-Mate mounting kit application needs
Use when replacing conventional struts or springs
Fits 2000-2005 Hyundai Sonata, front upper
Fits 2001-2005 Kia Optima, front upper
Fits 2006 Kia Optima, front upper, old body style; eighth digit of VIN is 6 or 8

Detailed Description

Monroe 908978 is part of the Strut-Mate product line, which is built for suspension service where the strut assembly is being renewed. In this application, the coil spring insulator sits at the front upper position and helps separate the spring from the mounting surface, reducing noise and vibration transfer. It is a direct-fit service part for select Hyundai Sonata and Kia Optima models, including the 2006 Kia Optima old body style with VIN eighth digit 6 or 8.

This part cross-references Monroe Shocks & Struts (e.g., 908978) for the same application.

What It Helps Address

Spring noise at the upper strut seat
Vibration felt through the front suspension
Worn or damaged upper spring isolator material
Noise after strut or spring replacement
Fitment-specific service needs on Hyundai Sonata and Kia Optima front upper suspension

Installation Notes and Tips

Install during strut or spring replacement service. Verify the vehicle body style and VIN details before ordering, especially for the 2006 Kia Optima old body style application. Confirm front upper placement before installation and inspect the surrounding strut components for wear.

Quality Assurance

Monroe Strut-Mate components are engineered to complement Monroe ride control parts and support consistent suspension service results.

This part fits 12 vehicles

Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

Year	Make	Model	Position	Notes
2006	Kia	Optima	Front Upper	Old Body Style; Eighth Digit of VIN is 6, 8; Strut-Mate Coil Spring Insulator
2005	Hyundai	Sonata	Front Upper	Strut-Mate Coil Spring Insulator
2005	Kia	Optima	Front Upper	Strut-Mate Coil Spring Insulator
2004	Hyundai	Sonata	Front Upper	Strut-Mate Coil Spring Insulator
2004	Kia	Optima	Front Upper	Strut-Mate Coil Spring Insulator
2003	Hyundai	Sonata	Front Upper	Strut-Mate Coil Spring Insulator
2003	Kia	Optima	Front Upper	Strut-Mate Coil Spring Insulator
2002	Hyundai	Sonata	Front Upper	Strut-Mate Coil Spring Insulator
2002	Kia	Optima	Front Upper	Strut-Mate Coil Spring Insulator
2001	Hyundai	Sonata	Front Upper	Strut-Mate Coil Spring Insulator
2001	Kia	Optima	Front Upper	Strut-Mate Coil Spring Insulator
2000	Hyundai	Sonata	Front Upper	Strut-Mate Coil Spring Insulator
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