KYB Suspension Shock Absorber P/N:553385
Firm up worn suspension on your Full-Size GM truck with the KYB Excel-G front shock absorber (MPN 344067). This gas shock drops in as a direct-fit replacement for the listed applications, including the 1969-1974 and 1987-1991 Chevrolet Blazer, 1975-1986 Chevrolet K10, 1969-1986 Chevrolet K10 Suburban, 1970-1991 GMC Jimmy and 1979-1986 GMC K1500 — see the Buyer's Guide tab for the full list of 32 applications.
KYB is a world-leading supplier of shocks and struts to new-vehicle manufacturers, and the Excel-G is a KYB-recommended OEM replacement built on the same OE assembly lines and calibrated to restore original, designed performance — earning it the OEA (Original Equipment for the Aftermarket) classification.
Interchange: G63818 · 37040
This part cross-references / interchanges with the following part numbers:
Is this KYB shock absorber for the front or rear?
It is a front position shock absorber (MPN 344067). Shocks are best replaced in matched pairs, so consider ordering two for even, balanced ride control across the axle.
Will this KYB Excel-G shock fit my truck?
It is a direct-fit replacement for the listed applications, such as the 1975-1986 Chevrolet K10 and 1970-1991 GMC Jimmy. Check the Buyer's Guide tab to confirm your exact year, make and model.
What is a KYB gas shock absorber?
The Excel-G is a nitrogen gas-charged, twin-tube design calibrated to restore a vehicle's original, designed performance rather than change it, earning KYB's OEA (Original Equipment for the Aftermarket) classification.
What numbers does this part interchange with?
This KYB shock absorber cross-references to G63818 and 37040. Matching one of these numbers helps confirm you have the correct replacement.
How do I know my shocks need replacing?
Signs that a shock may need replacing include reduced ride control and stability, poor handling during lane changes, and oil leakage. Diagnose the cause before replacing, as other suspension parts can share these symptoms.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.