| Item | Part No. | Part Name | Qty | Serial No. |
| 1 | 177-44-12230 | COVER | 12128- | |
| 2 | 177-44-12210 | PLATE | 12128- | |
| 3 | 07042-00312 | PLUG | 12128-23751 | |
| 4 | 177-44-12221 | GASKET | 23980- | |
| 4 | \0\177-44-12220 | GASKET | 12128-23979 | |
| 5 | 01020-01025 | BOLT | 23891- | |
| 5 | \0\01010-51025 | BOLT | 12128-23890 | |
| 6 | 01602-21030 | WASHER | 12128- | |
| 7 | 01010-51225 | BOLT | 12128- | |
| 8 | 01602-21236 | WASHER | 12128- | |
| 9 | 01580-11210 | NUT | 12128-23751 | |
| 10 | 175-892-8570 | VALVE | 12128- | |
| 11 | 07042-00211 | PLUG | 20080- | |
| 11 | 22-501134-03 | VALVE | 12128-20079 | |
| 12 | 07822-00699 | TUBE | 12128- | |
| 13 | 07822-00699 | TUBE | 12128- | |
| 14 | 07832-00614 | NUT | 12128- | |
| 15 | 07831-00612 | SLEEVE | 12128- | |
| 16 | 07834-00613 | ELBOW | 12128- | |
| 17 | 07834-00617 | ELBOW | 12128- | |
| 18 | 07836-00617 | CONNECTOR | 12128- | |
| 19 | 07822-00699 | TUBE | 12128- | |
| 20 | 07832-00614 | NUT | 20080- | |
| 20 | 07832-00612 | NUT | 12128-20079 | |
| 21 | 07831-00612 | SLEEVE | 20080- | |
| 21 | 07831-00614 | SLEEVE | 12128-20079 | |
| 22 | 07834-00613 | ELBOW | 20080- | |
| 22 | 22-590282-02 | ELBOW | 12128-20079 | |
| 23 | 07836-00613 | CONNECTOR | 12128- | |
| 24 | 177-44-11450 | AIR FILTER ASS'Y | 12128- | |
| 25 | 177-44-11352 | NIPPLE | 12128- | |
| 26 | 01582-12419 | NUT | 12128- | |
| 27 | 01602-22472 | WASHER | 12128- | |
| 28 | 07325-20400 | NIPPLE | 12128- | |
| 29 | 177-44-11470 | OILER | 12128- | |
| 30 | 177-44-12240 | NIPPLE | 12128- | |
| 31 | 175-894-7163 | VALVE | 23891- | |
| 31 | 175-894-7162 | VALVE | 12275-23890 | |
| 31 | \0\175-894-7161 | VALVE | 12128-12274 | |
| 32 | 175-894-7153 | VALVE | 23891- | |
| 32 | 175-894-7152 | VALVE | 12275-23890 | |
| 32 | \0\175-894-7151 | VALVE | 12128-12274 | |
| 33 | 01010-51025 | BOLT | 23891- | |
| 33 | 01010-51020 | BOLT | 12128-23890 | |
| 34 | 01580-11008 | NUT | 12128- | |
| 35 | 01602-21030 | WASHER | 12128- | |
| 35A | 177-44-11781 | BRACKET | 23891- | |
| 35B | 07283-24346 | CLIP | 23891- | |
| 35C | 01599-01011 | NUT | 23891- | |
| 35D | 01643-31032 | WASHER | 23891- | |
| 36 | 07822-00499 | TUBE | 23891- | |
| 36 | 07822-00699 | TUBE | 12128-23890 | |
| 37 | 07822-00499 | TUBE | 23891- | |
| 37 | 07822-00699 | TUBE | 12128-23890 | |
| 38 | 07832-00410 | NUT | 23891- | |
| 38 | 07832-00614 | NUT | 12128-23890 | |
| 39 | 07831-00411 | SLEEVE | 23891- | |
| 39 | 07831-00612 | SLEEVE | 12128-23890 | |
| 40 | 07835-00410 | TEE | 23891- | |
| 40 | 07835-00613 | TEE | 12128-23890 | |
| 41 | 07834-00413 | ELBOW | 23891- | |
| 41 | 07834-00613 | ELBOW | 12128-23890 | |
| 41A | 07834-00410 | ELBOW | 23891- | |
| 42 | 177-44-12250 | TUBE | 12128- | |
| 43 | 01010-51230 | BOLT | 12128- | |
| 44 | 01602-21236 | WASHER | 12128- | |
| 45 | 07822-00899 | TUBE | 12128- | |
| 46 | 07822-00899 | TUBE | 12128- | |
| 47 | 07822-00899 | TUBE | 12128- | |
| 48 | 07832-00817 | NUT | 12128- | |
| 49 | 07831-00813 | SLEEVE | 12128- | |
| 50 | 07836-00817 | CONNECTOR | 12128- | |
| 51 | 07834-00817 | ELBOW | 12128- | |
| 52 | 145-891-1440 | TEE | 12128- | |
| 53 | 175-894-3270 | VALVE | 12128- | |
| 54 | 07042-40312 | PLUG | 12128- | |
| 55 | 154-61-21370 | CLIP | 20080- | |
| 55 | 07283-03442 | CLIP | 12128-20079 | |
| 56 | 01580-01008 | NUT | 20080- | |
| 56 | 01599-01011 | NUT | 12128-20079 | |
| 57 | 01643-31032 | WASHER | 12128- | |
| 58 | 08036-21814 | CLIP | 12128- | |
| 59 | 01010-51220 | BOLT | 12128- | |
| 60 | 01602-01236 | WASHER | 12128- |