CYLINDER HEAD ASSEMBLY 4N7444 - Caterpillar

REBE3258-00
25Mar2008
U-148
A-116
D-110
O-132
TM-10
After Failure Only
PRODUCT SUPPORT PROGRAM FOR REPLACING EXHAUST RISERS ON CERTAIN C32 ENGINES
1059 PS51462
This Program can only be administered after a failure occurs.The decision whether to apply the Program is made by the dealer. When reporting the repair, use "PS51462" as the Part Numberand "7755" as the Group Number. Use "96" as the Warranty Claim Description Code and use "Z" as the SIMS Description Code.
The information supplied in this service letter may not be valid after the termination date of this program.Do not perform the work outlined in this Service Letter after the termination date without first contacting your Caterpillar product analyst.
TERMINATION DATE
31Mar2010
PROBLEM
The 4P-8251 and 4P-8252 Water-cooled Exhaust Risers, within the 4P-7478 Exhaust Manifold group, may fail where the integral 90 deg bracket is welded to the riser. Typically, this weld failure results in loss of coolant.
AFFECTED PRODUCT
Model Identification Number
*******Group 1*******
C32 RXB02473, 2479, 2550, 2553, 2578, 2581, 2596-2597, 2600, 2603, 2740-2742, 2744-2746, 2751-2753, 2775, 2784, 2910, 2912, 2915-2916, 2923-2930, 3014-3015, 3017-3022, 3042, 3044-3045, 3074, 3093, 3112, 3120-3121, 3134, 3136, 3140-3150, 3164-3174, 3205-3208, 3264, 3268-3269, 3271-3272, 3274-3275, 3277, 3288, 3291-3293, 3322-3323, 3326-3329, 3331, 3334, 3336-3337, 3339-3340, 3344, 3478, 3489, 3506, 3512, 3516
*******Group 2*******
C32 RXB00246, 256, 277, 279, 309-311, 320-323, 348-351, 356-359, 2187, 2191, 2193-2195, 2202, 2204, 2216-2217, 2220-2223, 2251-2255, 2257, 2274, 2291-2294, 2297, 2300, 2310-2311, 2323-2324, 2332, 2355, 2365-2369, 2371-2375, 2379-2380, 2382, 2405, 2407, 2411-2417, 2459, 2461, 2463-2464, 2467, 2486-2489, 2497, 2500-2502, 2504, 2516, 2519, 2538, 2541, 2543-2544, 2583, 2589, 2604-2605, 2617-2618, 2629, 2637, 2639, 2641-2642, 2652, 2673, 2675, 2685, 2687, 2701-2702, 2704, 2728-2730, 2732, 2734, 2736, 2738-2739, 2743, 2747-2750, 2754-2757, 2760, 2762, 2764, 2771, 2773, 2786-2787, 2829, 2839, 2842, 2896, 2911, 2914, 2948, 2951-2952, 2954-2955, 2980, 3023-3024, 3031-3032, 3046-3048, 3079-3084, 3100, 3106, 3110-3111, 3131, 3133, 3135, 3152, 3179-3180, 3188-3190, 3193, 3211, 3225, 3227, 3276, 3300, 3305, 3308, 3315, 3351, 3353, 3442, 3444, 3446, 3491, 3526, 3548, 3587, 3589, 3593-3594, 3598
PARTS NEEDED
Qty
Part Number Description
*******Group 1*******
6 0L2070 BOLT (IF NEEDED **)
4 0S1591 BOLT (IF NEEDED **)
1 0S1594 BOLT (IF NEEDED **)
1 2A4639 BOLT (IF NEEDED **)
2 2Y9255 SPACER (IF NEEDED **)
1 4W9149 SPACER (IF NEEDED **)
8 5M2894 WASHER-HARD (IF NEEDED **)
2 9S8752 NUT-FULL (IF NEEDED **)
12 9X6458 WASHER-HARD (IF NEEDED **)
2 2295332 GASKET (IF NEEDED **)
1 2847633 BRACKET AS. (IF NEEDED **)
1 2847634 BRACKET AS. (IF NEEDED **)
1 2922971 RISER AS. (IF NEEDED **)
1 2922972 RISER AS. (IF NEEDED **)
1 2925555 BRACKET (IF NEEDED **)
1 2925556 BRACKET (IF NEEDED **)
4 2933286 SPACER (IF NEEDED **)
1 3065140 TUBE AS. (IF NEEDED **)
In Order to allow equitable parts availability to