CYLINDER GP-BUCKET 2478853 - Caterpillar

The front of the engine block has been modified. This modification requires the use of different bolts that attach the front housing to the engine block. The correct bolts need to be used to attach the front housing. Use Table 1 to identify your type of engine.
Table 1
    Engine Model     Serial Number (Type 1)     Serial Number (Type 2)    
Industrial     3176C     2AW1-1328     2AW1329-UP    
    3196     1DW1-627     1DW628-UP    
    C-10     BCX1-268     BCX269-UP    
    C-10     -     7131-UP    
    C-10     -     CRJ1-UP    
    C-12     CPN1-323     CPN324-UP    
    C-12     BDL1-236     BDL237-UP    
Machine     3176C     3PD1-450     3PD451-UP    
3176C 7ZR1-6108     7ZR6109-UP    
3196 5ED1-428     5ED429-UP    
3196 6AR276-2872     6AR2873-UP    
C-12 -     JAC1-UP    
Marine     3176C     6BW333-500     6BW501-UP    
3196 2XR1-4150     2XR4151-42478    
C-12 -     9HP1-UP    
C-12 -     C1Z1-UP    
C-12 -     K1M1-UP    
C-12 -     NFL1-UP    
Truck     C-10     2PN1-UP     -    
C-10 8YS1-UP     -    
C-10 3CS1-21950     3CS21951-UP    
C-12 1YN1-UP     -    
C-12 9NS1-UP     -    
C-12 2KS1-69602     2KS69603-UP    
C-12 SRK1-UP        
C-12 CPD1-304     CPD305-UP    
C-12 9SM1-862     9SM863-UP    Table 1 is your guide for selecting your correct type of engine. If your engine is a Type 1 proceed to "Type 1". If your engine is a Type 2 refer to "Type 2". If you have a remanufactured engine then proceed to "Remanufactured Engines". The following illustrations will provide added information on the installation of the front housing.Note: Check on the availability of a gasket kit for your application. The kit includes both the short bolts and the long bolts.Type 1
Illustration 1 g01408559
6V-2317 Bolt (A) 30 mm (1.18 inch)
Illustration 2 g01408564
204-0712 Bolt (B) 30 mm (1.18 inch)The two bolts that are Type 1 are 30 mm (1.18 inch) long. Marks on the head of the bolt represent the grade of the bolt. These markings can be seen in Illustration 1 and Illustration 2. The 6V-2317 Bolt is being replaced by 204-0712 Bolt . The 204-0712 Bolt has a torque value of 40 8 N m (30 6 lb ft). 13 bolts are required for the installation of the front housing.Note: Check availability of the kit which includes the gasket and the bolts.Type 2
Illustration 3 g01408555
6V-5219 Bolt (C) 40 mm (1.57 inch)The 6V-5219 Bolt is 10 mm (0.39 inch) longer than the 204-0712 Bolt . The longer bolt is needed due to a deeper counterbore and the tapped hole. Do Not use the 204-0712 Bolt or the 6V-2317 Bolt . This could result in damage to the threads. The torque on the 6V-5219 Bolt bolt is 35 8 N m (26 6 lb ft). 13 bolts are required for the installation of the front housing.Remanufactured Engines
Illustration 4 g00838008
Depth of counterbore (Y) requires engines to