- Engine:
- G3512E (S/N: GFM1-UP; SSR1-UP; NGS1-UP)
- Power Module:
- PMG3516 (S/N: JKK1-UP)
- G3516C (S/N: GSB1-UP; TJB1-UP; GZC1-UP; TJC1-UP; F6D1-UP; F6E1-UP; F6F1-UP; GZZ1-UP; RWA1-UP)
- G3516E (S/N: F6G1-UP; GAS1-UP; SLY1-UP)
- G3520 (S/N: HET1-UP)
- G3520C (S/N: GZA1-UP; HEA1-UP; GZB1-UP; HEB1-UP; MAD1-UP; GZJ1-UP; GZK1-UP; GZL1-UP; GZM1-UP; GZN1-UP; B9P1-UP; RLP1-UP; LGS1-UP; HAT1-UP; CWW1-UP; CWY1-UP; JBX1-UP; JBZ1-UP)
- G3520E (S/N: GZE1-UP; GZG1-UP; GZH1-UP; HAL1-UP; SXY1-UP)
Description of Change: The new valve spring assemblies are more robust.
Adaptable To: The new valve spring assemblies replace the former valve spring assemblies in the above engines.
The new valve spring assemblies are adaptable to the above engines back to first production.
The new components in the new (415) cylinder heads are dimensionally different compared to the old (315) cylinder heads.
Therefore, when replacing parts on a cylinder head, it is critical that the parts match the cylinder head groups the parts were designed for.
Note: The new valve spring assemblies can be installed on the (315) cylinder head groups and (415) cylinder head groups.Individual parts listed in Table 2 cannot be interchanged between the old (315) cylinder head groups and the new (415) cylinder head groups. All components in a cylinder head must be changed together.
However, it is acceptable to have a mix of new cylinder heads and old cylinder heads on an engine.
| NOTICE |
|---|
Mixing parts from old and new heads creates a high probability of valve train component failure, major piston ring liner damage, and high repair cost. |
The new cylinder head gp and former cylinder head gp are listed in Table 1.
| Sales Model | New Part | Former Part |
|---|---|---|
| G3500 C/E - NG | 415-5584 Cylinder Head Gp | 315-2632 Cylinder Head Gp |
| G3500 C/E - Landfill | 415-5585 Cylinder Head Gp | 315-2633 Cylinder Head Gp |
| Sales Model | New Part | Former Part |
|---|---|---|
| All G3500 C/E | 316-5977 Spring | 194-4902 Spring |
| All G3500 C/E | 316-5976 Spring | 281-6157 Spring |
| All G3500 C/E | 316-5981 Washer | 209-0962 Washer |
| All G3500 C/E | 316-5978 Rotocoil As | 218-2935 Rotocoil As |
| G3500 C/E - Landfill (Intake Only) | 395-4261 Seal | 228-9673 Seal |
| G3500 C/E - NG (Intake) | 395-4263 Valve | 307-4641 Valve |
| G3500 C/E - NG (Exhaust) | 395-4263 Valve | 307-4641 Valve |
| G3500 C/E - Landfill (Intake) | 395-4263 Valve | 307-4641 Valve |
| G3500 C/E - Landfill (Exhaust) | 395-4264 Valve | 308-9177 Valve |
| Effective Serial Numbers |
|---|
| S/N:GFM00116-UP |
| S/N:NGS00160-UP |
| S/N:SSR00221-UP |
| S/N:F6D00109-UP |
| S/N:F6E00102-UP |
| S/N:F6F00108-UP |
| S/N:GSB00128-UP |
| S/N:GZC00260-UP |
| S/N:GZZ00363-UP |
| S/N:F6G00103-UP |
| S/N:GAS00281-UP |
| S/N:GZA00259-UP |
| S/N:GZB00250-UP |
| S/N:GZJ00663-UP |
| S/N:GZK00184-UP |
| S/N:GZL00147-UP |
| S/N:GZM00215-UP |
| S/N:GZN00881-UP |
| S/N:LGS00177-UP |
| S/N:RLP00262-UP |
| S/N:GZE00245-UP |
| S/N:GZG00112-UP |
| S/N:GZH00168-UP |
| S/N:JKK00229-UP |