1937900 HEAD AS Caterpillar parts
325C, 330C, 330C FM, 330C L, 330C MH, 330D L, 330D LN
Rating:
Alternative (cross code) number:
CA1937900
193-7900
1937900
CA1937900
193-7900
1937900
Weight: 54 pounds 24 kg.
EXCAVATOR,
Compatible equipment models: 1937900:
Number on catalog scheme:
35
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Information:
Procedure For Repairing Exhaust Manifolds
1. Remove any broken studs. Because of the extreme hardness of the stud, weld a nut onto the broken stud to provide an effective way of removing the stud. The 4S6137 Stud used on 3406 Engines can be replaced with a higher strength stainless steel 6V5699 Stud. (Use the 8M2296 Nut, if the 6V5699 Stud is replaced. The 2N2766 Locknut should be used with the 4S6137 Stud.) Make sure that heat treat scale on the threads of the 6V5699 Stud does not cause artificially low nut torques at assembly by creating thread interference (galling). The use of 8M2296 Nut with this stud will reduce the thread interference.2. Disassemble the exhaust manifold sections. Clean the joints thoroughly with a wire brush to remove all existing carbon, oxidation and scale. Finish removing any remaining residue with 80 grit abrasive cloth. After the cleaning process, the stud clearance holes can be reamed to 11.5 mm (.45") maximum diameter to allow for easier assembly.3. Make sure the male end of the manifold is clean, dry and free from grease and oil. Apply a thin, uniform coat of 2P2333 Manifold Sealer to the male end of the manifold sections.4. Apply engine oil only to the female end of the manifold sections. This will keep the sealer from sticking to the female portion of the joint.5. Install the new 9Y4582 Manifold Gaskets on the studs between the manifolds and the cylinder head. This gasket is thicker and denser than the former gasket and will improve nut torque retention.6. Assemble the manifold sections. Allow the sealer to cure thoroughly (over night if possible) before starting the engine.The sealant should: ...prevent oxidation on the joint and maintain the expansion capability of the joint,...minimize potential exhaust gas leaks from the newly cleaned joints,...prevent water entry into the exhaust manifolds of 3406B Engines when the engines are washed.
7. Put 5P3931 Anti-seize Compound on the stud threads, install the correct nuts or locknuts as explained in Step 1 and tighten to 52 7 N m (38 5 lb ft) using the sequence shown in the Service Manual.
1. Remove any broken studs. Because of the extreme hardness of the stud, weld a nut onto the broken stud to provide an effective way of removing the stud. The 4S6137 Stud used on 3406 Engines can be replaced with a higher strength stainless steel 6V5699 Stud. (Use the 8M2296 Nut, if the 6V5699 Stud is replaced. The 2N2766 Locknut should be used with the 4S6137 Stud.) Make sure that heat treat scale on the threads of the 6V5699 Stud does not cause artificially low nut torques at assembly by creating thread interference (galling). The use of 8M2296 Nut with this stud will reduce the thread interference.2. Disassemble the exhaust manifold sections. Clean the joints thoroughly with a wire brush to remove all existing carbon, oxidation and scale. Finish removing any remaining residue with 80 grit abrasive cloth. After the cleaning process, the stud clearance holes can be reamed to 11.5 mm (.45") maximum diameter to allow for easier assembly.3. Make sure the male end of the manifold is clean, dry and free from grease and oil. Apply a thin, uniform coat of 2P2333 Manifold Sealer to the male end of the manifold sections.4. Apply engine oil only to the female end of the manifold sections. This will keep the sealer from sticking to the female portion of the joint.5. Install the new 9Y4582 Manifold Gaskets on the studs between the manifolds and the cylinder head. This gasket is thicker and denser than the former gasket and will improve nut torque retention.6. Assemble the manifold sections. Allow the sealer to cure thoroughly (over night if possible) before starting the engine.The sealant should: ...prevent oxidation on the joint and maintain the expansion capability of the joint,...minimize potential exhaust gas leaks from the newly cleaned joints,...prevent water entry into the exhaust manifolds of 3406B Engines when the engines are washed.
7. Put 5P3931 Anti-seize Compound on the stud threads, install the correct nuts or locknuts as explained in Step 1 and tighten to 52 7 N m (38 5 lb ft) using the sequence shown in the Service Manual.
Caterpillar parts catalog:
Parts head Caterpillar catalog:
318B, 318C, 319C, 319D, 319D L, 319D LN, 320 L, 320B, 320C, 320D, 320D FM, 320D FM RR, 320D2, 320D2 L, 320E, 320E L, 320E LN, 320E LRR, 320E RR, 322B L, 322C, 323D L, 323D LN, 323D SA, 323E L, 324D L,...
1090, 1190, 1190T, 1290T, 2290, 2390, 2391, 2491, 320B, 320C, 322 FM L, 322 LN, 322B L, 322B LN, 322C, 322C FM, 324D, 324D FM, 324D FM LL, 324D L, 324D LN, 325B L, 325C, 325C FM, 325C L, 325D MH, 330C...
1090, 1190, 1190T, 1290T, 1390, 2290, 2390, 2391, 2491, 2590, 322C, 322C FM, 324D, 324D FM, 324D FM LL, 324D L, 324D LN, 324E, 324E L, 324E LN, 325C, 325C FM, 325D, 325D FM, 325D FM LL, 325D L, 325D M...
1390, 2590, 320 L, 320B, 320C, 320D, 320D FM, 320D2, 320D2 L, 322 FM L, 322 LN, 322B L, 322B LN, 322C, 322C FM, 323D L, 323D LN, 323D SA, 324D, 324D FM, 324D FM LL, 324D L, 324D LN, 325B L, 325C, 325C...
320 L, 320B, 320C, 320N, 322B, 322B L, 322B LN, 322C, 323D L, 324D, 324D L, 324D LN, 324E, 324E L, 324E LN, 325, 325 L, 325 LN, 325B, 325B L, 325C, 325C FM, 325C L, 325D, 325D FM, 325D L, 328D LCR, 32...
324D, 325C, 325D L, 328D LCR, 330C, 330C FM, 330C L, 330D, 330D FM, 330D L, 330D LN, 336D, 336D L, 340D L, 345C, 385C L
2255309
HEAD
330C, 330C L, 330D, 330D L, 330D LN, 336D L
330C, 330C L, 330D, 330D L, 330D LN, 336D L
2716377
HEAD AS
325C, 328D LCR, 330C, 330C L, 330C MH, 330D, 330D L, 330D LN, 330D MH, 336D, 336D L, 336D LN, 336D2, 336D2 L, 336E, 336E H, 336E HVG, 336E L, 336E LH, 336E LN, 336F L, 340D L, 340D2 L
325C, 328D LCR, 330C, 330C L, 330C MH, 330D, 330D L, 330D LN, 330D MH, 336D, 336D L, 336D LN, 336D2, 336D2 L, 336E, 336E H, 336E HVG, 336E L, 336E LH, 336E LN, 336F L, 340D L, 340D2 L
325B L, 325C, 330, 330 FM L, 330 L, 330B, 330B L, 330C, 330C L, 330C MH, 330D, 330D L, 330D LN, 330D MH, 336D, 336D L, 340D L, 345B II, 345B II MH, 345B L, 345C, 345D, 345D L, 345D L VG, 349D, 349D L,...
1791929
HEAD AS
330C, 345B II, 345B II MH, 345C, 345C MH
330C, 345B II, 345B II MH, 345C, 345C MH
2318279
HEAD COVER
325C
325C
2243711
HEAD COVER
325C
325C
1020817
HEAD
350, 350 L, 365B, 375, 375 L
350, 350 L, 365B, 375, 375 L
2Y1594
HEAD
120B
120B
2Y1593
HEAD
120B
120B
5J2045
HEAD
14E
14E
2D0711
HEAD
12E
12E
2D0827
HEAD
12E
12E
1709973
HEAD GP-MOTOR
345B II, 345B II MH, 345B L, W345B II
345B II, 345B II MH, 345B L, W345B II
1376963
HEAD
330B L
330B L
4406764
HEAD
325B L, 325C FM, 325D FM, 325D FM LL, M325B
325B L, 325C FM, 325D FM, 325D FM LL, M325B
350
325B L, 325C, 330, 330 FM L, 330 L, 330B, 330B L, 330C, 330C L, 330C MH, 330D, 330D L, 330D LN, 330D MH, 336D, 336D L, 340D L, 345B II, 345B II MH, 345B L, 345C, 345D, 345D L, 345D L VG, 349D, 349D L,...
1038362
HEAD
375, 375 L, 385B
375, 375 L, 385B