STD Main & Rod Bearing w/Piston Rings Fit for Chevy GM LS Gen III IV 4.8L 5.3L - LM7 LR4 L59 LS4 LY2 L20 LY5 LMG LMF LH6 LC9 L33 V8 1999-2016 Engine Replace# 2M4978 MS2199 BB253J CB663 41859CP

Complete Standard Piston Rings set with Rod and Main Bearing setsFITMENTCompatible with 1999-2015 Chevy GM 4.8L & 5.3L LS engines 3.78" Bore4.8L 1999-2015 VINs A,C,V,O,7,4 5.3L 1999-2013 LC9, LS4 VINs 0,3,4,B,C,J,L,M,P,T,ZCompatible with GM CAR 325/5.3L OHY 8 16V"C" GM 3.780" Bore05-09 Premium.1.5(0.06in) / 1.5 (0.06in)/3.0mm（0.12in）Compatible with GM TRUCK, VAN, SUV 293/4.8L OHV V8 16V GM 3.780" Bore99-13 Premium.1.5(0.06in) / 1.5 (0.06in)/3.0mm（0.12in）Compatible with GM TRUCK，VAN，SUY 325/5.3L OHV V8 16V GM 3.780"Bore 99-13Premium.1.5(0.06in) / 1.5 (0.06in)/3.0mm（0.12in）Compatible with HUMMER TRUCKVAN, SUV 325/5.3L OHV V8"L,P”GM 95.94mm Bore08-10 Premium.1.5(0.06in) / 1.5 (0.06in)/3.0mm（0.12in） Compatible with ISUZU TRUCK，VAN, SUV 5328/53L OHV V8 16VPM' GM 96.00mm Bore03-06Premium.1.5(0.06in) / 1.5 (0.06in)/3.0mm（0.12in）Compatible with SAAB TRUCK,VAN,SUV 5326/5.3L OHV V8 16VM"GM 96.00mm Bore05-09 Premium.1.5(0.06in) / 1.5 (0.06in)/3.0mm（0.12in）Package Included:1x Piston Rings Set1x Crankshaft Main Bearings Set1x Connecting Rod Bearings Set( as shown in the picture）SpecificationsType: Engine Rebuild KitMain & Rod bearings (sizes: std)Suitable for Cylinder Bore Diameter 3.78" (Φ96mm)Top Ring Thickness 1.5mmSecond Ring Thickness 1.5mmOil Ring Thickness 3.0mmReference Part Number2M4978, BC409J, BB253J, MS2199, BB253J, CB663, 41859CP, MS2199P, CB663P, C96008， MB2293SI, MS2199ANote: Professional installation is highly recommended (No Instruction Included)

• [Fitment] This rod main bearings and piston rings kit Compatible with LS Gen III IV 4.8L 5.3L V8 engines, 3.78" Bore, including LM7 LR4 L59 LS4 LY2 L20 LY5 LMG LMF LH6 LC9 L33. Compatible with Chevy 4.8L 1999 - 2016 Light Truck, 5.3L 1999 - 2013 Car and Light Truck.
• [Features] Crafted from high-strength metal alloys, these bearings and piston rings offer precision and standard clearance, minimizing wear and ensuring reliable performance. Meeting OE specifications, provide perfect fitment for direct replacement and quick installation.
• [Specifications] For STD Standard Size Crankshaft Journals and Standard 3.78" (Φ96mm) cylinder bore diameter. Top Ring 1.5 mm/0.058 in, Second Ring 1.5 mm/0.058 in, Oil Ring 3.0 mm/0.114 in.
• [Reference Part Number] 2M4978, BC409J, BB253J, MS2199, BB253J, CB663, 41859CP, MS2199P, CB663P, C96008
• [Customer Support] ARMKER is dedicated to making engine rebuilds easier, with years of experience supplying high-quality repair parts. If you have any questions, please write to us and we will definitely give you a satisfactory answer.