In stock
Part# 9S8004 OLD# -



Threaded plug with O-ring Sealing


Cat® Threaded caps and plugs are held to the highest standards of quality and reliability. These caps and plugs are manufactured to exacting tolerances to ensure leak free connections. Each Cat Threaded Cap and Plug is designed to meet or exceed industry standards for operating pressure, assembly torque capability, and corrosion protection to ensure a long life and proper machine functionality.

• Fluid transfer system components
• Designed to meet or exceed the performance of industry standard parts and provide leak free connections
• Available with a variety of drive types for convenience (Internal Hex, External Hex, Square, etc.)
• The image provided is for reference only. Cap or plug construction may differ slightly from the image depicted, but the part is designed to be interchangeable with the OEM part.

Threaded caps and plugs are designed to stop fluid flow and hold pressure when properly assembled with other fluid system components. Consult your owner’s manual or contact your local Cat Dealer for more information.


  • Material Description: Plated Steel
  • O-ring Seal: 3J-1907
  • Thread Size (in - TPI) (in): 9/16 - 18
 WARNING: This product can expose you to chemicals includingLead and lead compounds, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to
More Information
Current Part# 9S8004
Manufacturer CAT
Stock In stock
Weight 0.1000
Hot Deals No
Fits CAT
Type OEM
Warranty Standard Manufactures
Compatible Models

C18 30/30 DEUCE

MT735 65D MTC865 75 55 85C 65B MT845 95E 45 65E 35 65 MT765 75E 85E 75C MTC845 MTC765 MTC835 MT835 75D 70C MTC755 MTC855 MT745 MT865 65C MTC735 85D MT755 MTC745 MT700 MT855 MT800

966G 962G II 966M 966D 988 926E 972G II 916 910K 982M 972M XE 924F 966G II 988K 966H 966F 992 970F G926 992B 966E 928H 988G 907M 986K 938F 962M 914G 928G 938H 936 924GZ 992G 980F 950G II 938G II 950M G936 904H 962G 950 936E 928F 950F 950K 906M 950H 980K 930K 988K XE 992K 980G II 950E 930 972G 980H 980F II 950B 972H 960F 924G 950G 980C 938K 926 966K 990 II 930T 980M 966C 924HZ 988H 992C 986H 966L 962H 930R 993K 972M G910 908M 966M XE 962K 972K 920 914G2 994K 926M 992D 936F 988B 950F II 972L 924K 994H 918F 938G 928HZ 908H G916 980G 910 910E 924H 906K 910F 988F 962 980B 920K 930M 962L 990K 950 GC 966F II 950B/950E 906H 962M Z 988F II 908K 906H2 908H2 907H2 930H 914K 990H 930G 950L 938M 914M 907H 904B 966K XE 908 918M 994 990 907K 950M Z 994F 966R 910G 910M 980L 980K HLG 994D

3508 3412C G3516C C32 G3520C G3516H 3456 3516B G3520E C18 3406E C13 C15 G3516B 3512B 3412 C9 GEN SET 3516C 3406B C4.4XQ100 G3512H C7.1 C9 C280-16 C7.1 GEN G3516E G3520H 3516 C-12 PM3412 CG170-16 3508B 3608 3116 G3512E C27 C9.3 C15 I6 C13 XQ375 G3406 PMG3516 C4.4XQ80 3406C 3512C C13 XQ350 XQ425 3114 G3412 C18 I6 C18 GEN SE C13GENSET XQ230 3126B XQP300 C175-16 PM3456 G3520B

528 518 525B 508 518C 120C 535B 545 525D 525C 545C 555D 545D FB518 535D 535C 525 515 530B 528B

769C 771D 777E 770G 775B 777G 773G MT4400D AC 776C 772B 776B 772G 777D 775D 798 AC 773G OEM 773B 775F 789D 773D 793F 795F AC 789 793C 775E 797F 772 785C 768C 794 AC 793D 776D 789B 773E 771C 793F XQ 795F XQ 775G OEM 770 773F 69D 785 773G LRC 769D 772G OEM 775G LRC 784B 785D 777F 797B 776 797 793 785B 777B 773GC 777 789C 793B 777C 784C 793F CMD 793F OEM 785G 796 AC 793F AC 775G 770G OEM

3176C C-12 C4.4 3116 C-9

3412 C4.4 3208 3114 3116 C-12 C-9 3406B G3616 3406E SBF214 C27 G3512E C32 3512C 3408C C13B G3406 3406C SPT342 C15 3512B 3126B G3608 C6.6 3176C C18 3516B C13 3196 3512E 3508B C175-16 3412C 3126 C7 C9 CPT372 G3516C 3412E C7.1 SPP101 3612 C11 G3606 G3516 SPF343C G3612 3456 C-10 C-16 SPF743 G3512 G3606B C280-16 G3508 SPS342 G3512H HT400 G3516E SCT673 C9.3 PMG3516 C9.3B 3408E SPF343 SUF557 3176B 3406 SPT343 3516C C-15 SR4

955K 943 955L 953 951B 935C 963 931 939C 973 983 973C 941 935C II 941B 951 963K 931C 939 963C 977 931C II 931B 963B 973D 951C 953C 953D 963D 955 953K 935B 953B 933 933C

740 GC D300B 735C D300E II D30C D350E 730C2 725 735 745C D250B 740 730 730C2 EJ 735B 725C 725C2 D300E D300D 740B 745 D250E II D250D 730C D250E D350D D25C D350C 740C D35C D400E II D30D D40D 735 OEM D400E D25D D400D D20D D350E II

TH215 RT80 TL1055C TH336C TH460B TH210 TL1055D TL1255C TH340B TH580B TH408D TH220B TH330B TH63 TH355B TH357D TL1255D TH3510D TH103 TH560B TH82 RT100 TH83 TH360B TH350B TH62

305.5E 305.5E2 CR 307E 305E2 CR 303.5E 303.5E2 CR 307-A 303.5D 308E2 CR 308E SR 305D CR 303E CR 303.5E2 301.5 302.5 307B 305.5E2 304E 306 304E2 CR 305.5 305.5D 307E2 308E 307C 301.8 304D CR 302CR 308 308D 308E2CR 305E 305C CR 304.5E2 306E2 309 303C CR 301.6 308E CR 308.5 305 308E2SR 308E2 304 307.5 308E2 SR 308C 304E2 301.7CR 305E2 307D 310 303ECR 306E 304C CR 303.5C

470 460 465

RM-350B SS-250B RM-500 RM500B SM-350 SS-250 RM-350 RR-250 RM-250C RM-300 RR-250B

12G 140K 16G 14E 160H 14L 130G 140M 160M 2 120M 120G 12M 2 120H NA 14G 140G 12H 16M 143H 16H 135H 120L 140M 3 AWD 140M 3 24 160M 140H NA 14M 12H NA 12H ES 140 120 140M 2 160H ES 12M 16H NA 140H 160K 120M 2 24M 12M 3 140K 2 120H 135H NA 160M 3 AWD 120K 16 163H NA 16M3 18M3 160H NA 160M 3 163H 12F 14H 160G 12M 3 AWD 14M-3 24H 140H ES 12K 14M3 120H ES 14H NA 120K 2

MH3024 MH3295 MH3037 MH3026 MH3049 M325D L MH MH3022 M325D MH MH3059

M320 M312 M318 M315 M322D2 M318D MH M318C MH M315D2 M320D2 W345C MH M322F M322C M316D M314F M322D MH W345B II M318D M322D M315D M330D M323F M320F M317D2 M313C M322D2 MH M316C M318C M325C MH M313D M316F W330B M315C M324D2 MH M318F M325B

CS-583E CS-563C CP-663E CP74B CS-433E CS-683E CS-44 CP-433E CP-56 CC2.6 CB-22B CB-24B CS44B CS-531C CS-573 CP-74B CB13 CP-323C CB-535B CP-533E CB-224D CB10 CP-56B CB1.8 CB-534D CS-531D CB-54 CD-54B CS-583D CB-334D CS-76 CS64B CB-32B CP56B CS-573E CS-68B CB-34B XW CC-34B CS-74 CS-583 PS-360C CS-74B CS78B CP-68B CS54B CS-563 CS-433C CP-34 CS-433B CS-56B CS-563D CB-66B CS-76B CP-44 CP-563E CS-533D CS-663E CS68B PS-360B CS-533E CB-634C CB-335D CP-533 CP-573E CP-563D CW34 CB16 PS-200B CS-64B CD-54 PS-150C CS-323C CW-34 CB1.7 CS-78B CS-431C CD8 CP-54B CP-563 CS79B CS-573D CP-563C CP44B CP76B CB-68B CB-534B CP54B CB7 CS10 CB-54B CS-583C CP-533C CS-54B CS-34 CS-66B CS-423E CP-433C CB-34B CP-533D CS56B CB-64 CB-64B CB2.7 CS-64 CS74B CC-24B CB-434B CB8 CD-44B CB-634D CP68B CB-224C CB-534C CB15 CB-564D CB-434C CD10 PF-290B CB-214D CB2.9 CS-531 CB-36B CB-634 CP-74 CB2.5 CB-44B PS-150B CS-533 CS-533C CW-14 CP-54 CB-434 CB-544 CB-434D CS-54 CP-44B CS-56 CS-44B CB-214C CP-64 CS-573C CS-563E CP-433B CS12 CCS9 CP-76 CS-79B CS11 CB-545 CB-225D CCS7

AD45B AD55 AD60 AD22 AE40 AE40 II AD45 AD30 AD40 AD55B

MD6310 MD6200 MD6250

320D2 L 225 235 323D S 330D L 320-A N 352FMHPU 325C 325D FM 345C L 312D 311D LRR 330D 215 345D L 311B 349F L 322B L 323D LN 213B 345C 320-A 375-A L 330D2 L 336E L 336F L 312B 320D2 390F 215B 311F LRR 385C L 330D FM 231D E120B 320D RR 345B L 345B 5110B 323D L M325D L MH 320B U 330 336E H 245 324D L 390F L 320C 340 336D2 L 320 GC 318D2 L 320D2 GC 317 N 323E LN 325F LCR 365B L 326D2 330D2 330 GC 312D L 319D LN 313D 336D2 GC 229D 325D L 317-A N 329D L 318F L 315C 323F SA 326D2 L 219D 311C 323 336 GC 329D 312C L 322 L 215C 320E LRR 385C FS 385B 245B 345B II 385C 329D2 L 325-A 336F L XE 318B N 330-A L 320B N 336E LH 336E LNH 336F 320B FM LL 340F 5090B 312F 322-A L 314E CR 312C 322C FM 317B LN 316E L 558 320D 330-A 336E EL240B 235C 320B LU 330B LN 225B 330C 330 L 349 350 L 324D 330-A L 325B L 315D L 336D LN 330F L 320E L 312D2 L 323F OEM 336F LN 365B II 349D2 L 325 L 336D L 322N 349E L VG 321D LCR 318C 328D LCR 314D LCR 325D MH 336F LNXE M325D MH 323F L 320D2 FM 320F L 352F 313D2 329E L 329E 320E 5230 212B 224B 314C 352F-VG 336FMHPU 316F L 320-A L 349D 214B 350-A 365C 335F LCR 349E 345D 365B 330D MH 349D L 568 FM 320B 329E LN 5130 E240B 330B L 312B L 538 314E LCR 323D2 L 245D M315F 320D FM EL200B 320D L 336 329D LN 325-A L 330F OEM 320 318E L 350-A L 330B 320E LN 323E SA 322C 374F L EL240C 345D L VG 320D GC 320 L 374D L 335F 325C FM 322B 318B 336D2 312E L 352F XE VG 312F GC 340D2 L 365C L 349D2 340F L UHD 326F 336F XE 225D 313F L 330D LN 313F 326F L 5080 325D 320B L 325-A LN 313F LGC 325F 374F 349E L HVG 312E 315-A 315F LCR 325 LN 330C FM 320B LL 330C L 314F CR 313F GC 330C MH 321B M317F 349F LXE 319D 323D 330 LN 325C L 324D LN 320D FM RR 320N 375-A 320D LRR 324D FM 229 E110B 320D LN 307-A 312D2 313D2 GC 313B 219 390D L 390D 349E L 336D2 LXE 324E 330F 336D 323F LN 323F 336D2 XE 235B 311-A 326F LN 345C MH 320B S 314D CR 319D L 345 GC 321C 307 326D L 206B 312-A 320C L 319C 320C FM 312D2 GC 318D L 352F OEM E200B 385C L MH 322-A N 214B FT 330-A LN 340F L LRE 324D FM LL 205B 330C LN 324E L 336D2 L XE 324E LN 329D2 336E HVG 323D SA 322 LN 323D3 322-A LN 352 322B LN 325B 320D3 322-A 325D FM LL 215D 336F LN XE 336E LN 329F L 315-A L 320E RR 345B II MH 325B LN 340D L 330FMHPU E240C 349F 5130B 317-A 568 FM LL 313D2 LGP 318D2 323D2 365C L MH 320-A S 325-A FM L 211B 235D 5230B 323E L 315B L 330F LN M318F 317B L

613 657G 627F 637D 657E 631D 623B 627B 631E 657B 637E 637 627 627G 633C 637G 621 641 657 621B 631G 623G 621F 631C 631K 621G 621E 623H 621R 623E 637K 615 641B 651B 633E II 613C 627E 650B 651 623F 627K 621H 651E 623 TS225 611 666B 615C 639D 623K 613C II 621K 627H 613G TS185 615C II 660B 633D 627K LRC 613B 623K LRC 621K OEM 621S

836K 815F II 815 826K 816K 836G 816F II 815F 836 816 825C 826B 825G 825K 826G 816F 836H 815B 825H 825 825B 815K 826C 825G II 826G II 826H


C280-12 C9 C15 WS255 XD TH31-E61 TH35-E81 3508C 2016 TH31-C9P CX31-C15I C32 TH31-C9T TH35-C13I C27 WSF255 WSF255 SS 3512B CX38-P800 CX35-C18I WSF255 XD CX35-P800 C18 TH48-E80 CX31-C9I C7 3126B TH31-C9I TH55FT-E90 3516C CX31-C13I CX31-P600 WSF223 TH48-E70 CX31-C18I TH55-E70 CX38-P892 3512C 3512E CX31-C11I WS223 XD TH35-C15I C13 CX48-P2300 TH35-C11I TH35-C15T WSP223 3412E WSP255 C-15 WSP273 WS255 C11 TH55 WS305 XD WSF223 SS WSP305 WS255 SS TH48 WS273 XD TH35-C13T WS223 WS223 SS

3176 3406E 3126B C-12 C-18 C16 C-15 C15 3116 3126 C9 C7 3126E C-10 C13 C11 C18 3406C 3406B C-9 3208 C-16 3176B

HEX-WEDGE PIN GRAB H140DS H140CS H50 G320 H65E S MP40 H63 H180E H45E S H95 H120E S H45S H63S BRX118 MP30 MP20 LR18 H70 PC412B 63 H180E S VRG50 H140E S H45 H130E H35DS H35E S VT50 H120S H90CS SW345B H140E H160S LR15B 115 PC408B VT30 H120CS H50S 160 PC104B H140S H45DS H80E H115E S H55E S H180DS HM518 H195 H100 SW460B H120E MP15 H95E S H75E S 140 BRX318 100 H55S G330 130 H160E PC310B H80 PC306B H160CS H65S G315 VRG30 H115E H115S H65DS LR18B PC205B H100S H35S PC305B H70S H130E S 70 SW360B H130S 70S VT40 LR15 H90C BRX418 H180S H55DS H160E S H110E H160DS 120 H110E S VT60 VRG40

PM822 PM620 PR-1000C PM825 PM-565 PM622 PM310 PM313 PM820 PR-450C PM-201 PM312 PR-750B PM-200 PM-565B PM-102 PM-465 PR-1000

HH45 511 HF201 558 1090 552 522 HF202 551 HF221 570 SAT318 584 TK722 TK370 HA771 SS-56 SH-56B 322C TK711 2570C HA770 563C 2670C 570B 533 1390 541 579C 548 580 TK752 2484C 574B 579D HF181 1190T HF222 586C 559C 1290T 539 1190 2384C 2384D 522B HH65 HFW222 521 532 SAT325T 573C 2670D 584HD TK732 580B 2290 SC-57 SAT318T 550 2570D 564 HA871 TK371 TK1051 541 2 227 2864C TK751 563D HH75 HFW221 554 TK721 HA870 HF201B 521B 560B 2491 TK380 574 559D 550B 543 573 2590 TK741 HH55 2391 552 2 2484D 573D SAT323 2390 TK381 345C

527 517 4P D4HTSK III 125C 120C D5HTSK II D4HTSK II 54H

416E 446B 436C 426C 415F2 IL 430F 432E 430E 416F 420E 444F 426B 420D 438D 450F 416F2 442E 430F2 424D 434E 428E 430D 424B 416C 416B 420F 436B 416D 416 446 415F2 428F 438B 450E 436 428F2 422E 438C 434F 428D 427F2 442D 428C 426 F2 444E 414E 432F 438 428B 420F2 440 422F2 422F 432F2 444F2 446D 424B HD 434F2 424B2 432D 426 450 428

239DR 236B 246 277B 226 239D 279D3 226B 228 236 232D 236DR 289D 299D3 257B3 277 277C2 232B 256C 287C2 239D3 287B 262D 272D XHP 249D3 267 279D 2236D3 242D 262D3 216B3 299D 248 299D XHP 262 257D3 252B3 236D 277D 226B3 226D 242B3 259D 279C 272D2 XHP 299C 259D3 257D 226D3 289D3 272D3 297C 299D3XHP 272D 242D3 262C 248B 297D2 XHP 247B3 249D 267B 246D 262B 299DR 252B 297D2 242B 246D3 272C 297D 299D2 289C 287D 216 262 D3 246B 236D3 299D3 XE 247B 242DR 232D3 287C 299DR XE 299D2 XHP 252 287 272D2 289C2 236B3 297D XHP 257B 272D3XHP 279C2 277C 246C 262C2 268B 259B3 216B

854G 854K 824B 834H 844K 834K 834G 834 814 834B 844 814B 814F II 824G 824C 824G II 824H 814F 844H 824K 814K 834U 834S 824S

AP355F AP555F AP-600D AP655F L AP-650B BG-2255C AP-1055B AP-1000D BG-230 BG-245C AP600F AP-800D AP-800C BG-260C BG655D BG-225B AP500F BG-225C BG-210B AP-1000 AP-555E AP-1055D AP-1055F AP-755 AP-800 AP655F BG600D BG-2455C AP-800B BG-2455D AP-655D AP-1050 AP-1055E AP-655C AP-1200 BG-260D AP-1000B AP-1000F AP-200B AP-500E BG-230D BG555E AP-1000E BG1055E AP-1050B BG500E BG-240C BG1000E AP-900B

IT18 IT28F IT12 IT14G IT24F IT62G II IT18F IT38G II IT28G IT38G IT18B IT14G2 IT62H IT14B IT62G IT14F IT28 IT38H IT28B IT38F IT12B

PL87 PL61 587R PL72 572R II 583T 578 561N 583R PL83 561H 594H 572R 561M 587T 589 572G

3612 3512B C280-16 3516B C-12 C9.3 3408B C18 3412E 3406E C32 C12 C9 C7.1 3508B C15 3406C 3516C C7 3512E 3412C 3618 3208 3126B 3406B 3616 3176C 3412 C280-12 C280-6 3196 3512C C30 C12.9 C280-8 3608 3176B G3512E 3408 C8.7 3512 3412D 3606

6015B MD6290 6040 FS 6018 6020B 6015 MD5125 6030 MD5150C 6015 FS HRS1220 6040 MD5075

D3C II 59 D4H D5C III D6R 173B D6H 57H D6R II 4 D7G D8N 153 4S D6M 6S D7H D6T 8S D11T D5H D6T XW D10 D7G2 6SU D5B 29 163 D9R D8T D6 183B D6N 10S 58L 6A D6T XL 9U D5M D5K XL D6T LGP D8R II D4H XL D3K XL D3C D3 8 8U D10R D4K2 XL D6R STD D7R 10 D6R III 59N D9N D9G 7S D6E D6D D6T XL PAT D7R II D6K2 D6H XL 6 D4G D3K2 LGP 3P 8A 11SU 150 D4C III D6H II 5S 5A PAT 141 D5K2 LGP D7E D7R XR D9T 5A 7 58 181 D8K D11N D4K2 LGP D8L D3G 5P 9 D6R XL D6N LGP D6N XL D6K 7U 10U 140 8D D5R2 9SU D4C II D9H 55 9S D10N D7R LGP D6R LGP D3K2 XL D6K LGP 127 151 D6K2 LGP D3C III D8R 4P D6H XR 5 D5K LGP 143 D5K2 XL D5N D3K LGP D4B D11R 56 D7E LGP 59L D5R LGP D4H III D4C D5C D4K LGP 57 193B 7SU D5G 161 11 D3B D9L D6K XL 56H D4K XL 191 54 D6T XW PAT 9C D6T LGPPAT D5E 128 11U 8SU D10T 53 10SU D10T2 D6E SR 4A D6K2 XL 3 10C 7A D6 XE 193 3S D5H XL D5R XL 7S LGP D5C PAT D5C PATLGP D5 D7F D6N OEM D6D SR

R1700G R2900G R3000H R1700 II R1300G II R1700K R1600 R1600G R1300G R1600H R2900 R1300

TA22 TA19-M4WD CX31-P300 CX31 CAT WDS OEMS 777G TA22-M4WD CX28 TR53 TA19-M2WD CX35

Note: Cat® parts shipped within the United States only.

Need Help?

Visit our Help Center, Chat or Call us

ProFor Business

Have a shop?

Join and get privileged benefits.

Can’t find the parts you need? Call us!

We carry thousands of OEM and aftermarket parts and have professionals ready to help you.

Need larger quantities for your fleet or shop?

Contact us or Request a Quote to speak to an account rep about PRO Business benefits.

Big Rig World is a retailer of new heavy duty truck parts. We supply OEM and aftermarket parts from name brands, including Paccar, Kenworth, Peterbilt, CAT, Cummins, Freightliner, Mack, Volvo, Fleet Engineers, and many others. We ship parts to the United States, Canada, Mexico, Russia and several other countries. Big Rig World also sells to wholesale customers including parts stores, dealerships, service shops, and fleets where customers get wholesale pricing, shipping specials, and other perks. Our team is multi-lingual with a deep knowledge of truck parts and can help you get the part you need to the place you need it!