Seller notes

For 1989-1991 Chevrolet R3500 Oil Pump 87863TQRB 1990 GAS Review Fitment Notes to Ensure Proper Fit Condition: NewBrand: MellingNotes: Performance -- 25% Higher Volume High Performance Oil Pump; 10 PSI Higher Pressure Relief Spring Installed; Exclusive Billet Steel Shark Tooth Helical Pump Gears; Drive & Idler Shafts Extended Into Cover; Includes 12550 Chrome Moly Steel Intermediate Shaft With Steel Guide; Threaded Pressure Relief Nut; Includes Optional Pressure Springs (-10 PSI And +10 PSI); Us...

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