VW Connecting Rod Bearing Set (.25mm Undersize) – 113-105-707 The 113-105-707 is a high-performance connecting rod bearing set designed for air-cooled Volkswagen engines where the crankshaft journals have been professionally machined (turned) to a .25mm (.010") undersize. These bearings are the critical contact point between the connecting rods and the crankshaft, ensuring smooth rotation and maintaining oil pressure within the engine's bottom end. Made from high-quality bimetal or trimetal materials, these bearings are engineered to withstand the unique heat and friction demands of the VW flat-four engine. Whether you are rebuilding a 1600cc dual-port or a vintage 1200cc, using precision-sized bearings is essential for preventing rod knock and ensuring a long engine life. This set includes all the bearings necessary to outfit a complete four-cylinder engine. Detailed Vehicle Compatibility This bearing set fits standard Type 1 style crankshafts found in: VW Beetle: 1966, 1967, 1968, 1969, 1970, 1971, 1972, 1973, 1974, 1975, 1976, 1977 VW Bus (Transporter, Kombi): 1960, 1961, 1962, 1963, 1964, 1965, 1966, 1967, 1968, 1969, 1970, 1971 VW Super Beetle: 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979 VW Karmann Ghia: 1966, 1967, 1968, 1969, 1970, 1971, 1972, 1973, 1974 VW Type 3: 1962, 1963, 1964, 1965, 1966, 1967, 1968, 1969, 1970, 1971, 1972, 1973 Product Highlights & Features Precision Undersize: Correctly sized for crankshafts that have been ground .25mm / .010" below the standard factory diameter. Oil Retention: Features optimized oil grooves to ensure a consistent film of lubrication during high-RPM operation. Durable Construction: Designed to handle the thrust and radial loads of the VW air-cooled boxer engine. Complete Set: One part number provides enough bearings for all four connecting rods. Technical Specifications Part Number: 113-105-707 Size: .25mm (.010") Undersize Application: Connecting Rod Journals Engine Fitment: 1300cc, 1500cc, 1600cc (Type 1 based) Installation & Maintenance Tips Verify Your Grind: Always use a micrometer to measure your crankshaft journals before ordering. Never assume a crank is standard; if your crank was ground to .25mm, these are the only bearings that will work. Cleanliness is Critical: Ensure the rod bores and crankshaft journals are surgically clean. Even a tiny piece of lint can cause a "hot spot" and lead to premature bearing failure. Lubrication: Liberally coat the bearing surfaces with a high-quality engine assembly lube before assembly. Do not use standard motor oil, as it may drain away before the engine is first started. Check the Tangs: Ensure the locking tangs on the bearings are properly seated in the notches of the connecting rods to prevent the bearings from "spinning." 113105707T 113 105 707T 113105707S 113105707AA
