GEAR-PLANETARY 7G2475 - Caterpillar

Caterpillar Products:
3500 Family Generator Sets and Power Modules
3500C Engines
G3500 Family Generator Sets and Power Modules Engine: Commercial
3500 and 3500B
G3500 FamilyEngine News SEBD9727, 14 September 2011, "A New Oversized Cylinder Bore Liner Seal Insert Is Available for 3500 Engine Cylinder Block Salvage". Disregard the previous article, refer to the information that follows.The new 335-8971 Insert with a 0.254 mm (0.010 inch) oversized outer diameter is now available.The new 335-8971 Insert has the same thickness as the 353-5618 Insert, but the new insert provides an oversized outer diameter.The new 335-8971 Insert is intended for use as needed in replacing loose standard-sized inserts.
Illustration 1 g02649139
Dimensions for the insert (N) Outside diameter (P) Thickness of the insert (R) Wall thickness of the insert (S) Radius on insert
Table 1
Dimensions for the Liner Seat Insert    
Part Number     Outside Diameter (N) (4)     Thickness of the Insert (P)     Wall Thickness of the Insert (R)     Radius (S)    
353-5617
120-4334 (1) (2)    
212.115 0.013 mm (8.3510 0.0005 inch)    
5.080 0.025 mm (0.2000 0.0010 inch)    
6.528 0.032 mm (0.2570 0.0013 inch)    
0.90 0.13 mm (0.035 0.005 inch) by 30 degrees    
353-5618
120-4337 (1) (2)    
7.620 0.025 mm (0.3000 0.0010 inch)
335-8971 (3)    
212.370 0.013 mm (8.3610 0.0005 inch)    
6.665 0.032 mm (0.2624 0.0013 inch)
( 4 ) Do not measure this dimension
( 1 ) Canceled
( 2 ) Non-chamfered insert
( 3 ) Oversize