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8T-1687: 3/4" X 13/16" Straight Adapter

Cat® Straight Adapter provides a straight and seamless connection between two different types of hydraulic hoses for efficient fluid flow

Brand: Cat

8T-1687: 3/4" X 13/16" Straight Adapter

Cat® Straight Adapter provides a straight and seamless connection between two different types of hydraulic hoses for efficient fluid flow

Brand: Cat

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Add your equipment to see if this part fits or if there are repair options available.

8T-1687

3K-0360

6V-8398

8T-1687: 3/4" X 13/16" Straight Adapter

3K-0360: 2.21 x 16.36mm 90A NBR O-Ring

6V-8398: 1.78 x 12.47mm 90A NBR O-Ring

6V-8397: 1.78 x 9.27mm 90A NBR O-Ring

3J-1907: 1.98 x 11.89mm 90A NBR O-Ring

4J-0522: 3.53 x 37.69mm 90A NBR O-Ring

Description for part number 8T-1687

Description:
Cat fluid carrying adapters are held to the highest standards of quality and reliability. These adapters are manufactured to exacting tolerances to ensure leak free connections. Each cat fluid carrying adapter 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.

Attributes:
• Plated steel adapter
• End 1: Male STOR
• End 2: Male ORFS
• End 1 Thread Size: 3/4-16
• End 2 Thread Size: 13/16-16
• Hex Size: 22.22 mm (0.87 in)

Application:
Adapters are designed to connect fluid carrying hoses and tubes to other system components. Consult your owner’s manual or contact your local Cat Dealer for more information.

Warning:This product can expose you to chemicals including Lead 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 www.P65Warnings.ca.gov.

Cat® Hose Assembly Products Warning

Improper selections of hose and coupling combinations will void warranties and may result in serious personal injury or death, property damage, or component and machine system failure.

Specifications for part number 8T-1687

Units of Measure

Compatible Models for part number 8T-1687

INTEGRATED TOOLCARRIER

IT12B IT38H

WHEEL TRACTOR-SCRAPER

627 623 621 637 627K LRC 632 631 623K LRC 631K 623K 621K 627K 613G 637K 657 651

WHEEL SKIDDER

525 545

WASTE HANDLING GRAPPLE

G318

MINI HYD EXCAVATOR

303.5 302.5 307D 307B 304CR 304 305 306 304.5E2 305.5 304.5 303.5CR 302.7CR

ROTARY DRILL

MD6200 MD6380

TRACK FELLER BUNCHER

2390 1190 2590 TK1051 552 2 511 522 521 1190T 532 541 1290T 551 552

EXCAVATOR

311D LRR 316F L 345B II 349D L 325B L M315F 312E 336D 324D 336E 312D 324E 336F 315D L M317F 320D2 320D3 336D2 L 314D CR 326D L 323F 336F XE 374F L 323D M318F 349E L 330D2 325C L 322C 323D LN 385C FS 324E LN 352F XE VG 330B LN 321C 330D FM 345B 345C 345D 548 320D2 GC 349F L 385C L 320D2 FM 325D L 316F 352F-VG 317 M325C 313 320GX 326F L 336D L 323F OEM 336F L XE 323E LN 314E CR 330C FM 326F 320 GX 538 349D 324D L 313F 336E L 320 GC 325C 349E 325D 336E H 349F 313D 352F 312D L 340F 345B L 324D FM LL 329D LN 314D LCR 336F LN XE 323F LN M325D MH 318D2 L 324E L 336F L 374F 312E L 345C L 318 GC 323D SA 323D3 323D S 336D2 GC 323D L 313F L 330D2 L 323D2 326D2 L 314F CR 385B 385C 345D L 336F LNXE 313F GC 320B 320C 320D 320E 314E LCR 323E L 336F LN 329E LN 323E SA 320E LN 320B S 320B N 330F 320B L 345B II MH 330C 330D 390F L 323F L 317 GC 336D2 L XE M325D L MH 336E LN 320C L 336E LH 349F LXE 325D FM LL 336D2 LXE 323F SA 320D LN 340D2 L 312F GC 390D 390F 320D L 336E LNH MH3040 390D L 336D LN 325C FM 340F L UHD 349E L VG 330B L 320E L 325D FM 325B LN 320D GC 326D2 349D2 323D2 L 330C L 336D2 320F L 313D2 320D FM 330F LN 330D L 318E L 330D MH 328D LCR 329D L 324D FM 340F L LRE 349D2 L 319D 330D LN 320C FM 319C 568 FM LL 318F L 320 325 323 318C 329E L 318F 319 340D L 335 311F LRR 329D 330F L 329E MH3022 MH3024 323 GX 318D2 329F L 336D2 XE 330C LN 325D MH 313F LGC 385C L MH 321D LCR 316E L 315F LCR M320GC 329D2 L 322C FM 320D2 L 324D LN 329D2 M318 330C MH 326F LN M320

MULTI TERRAIN LOADER

287C2 277C 277C2 297C 287C

COMPACT TRACK LOADER

289C 279C2 299C 289C2 279C 255 265

WHEEL TRACTOR

631K 621K OEM 651 637K

ROTARY MIXER

RM800

HEX BASED SPL SOLUTION

320E 330F OEM 352F OEM

TRACK LOADER

973C 973K 963C 953C 953D

SOIL COMPACTOR

CP68B CP56B CS74B CP74B CP12 CP14 CP16 CS12 CS13 CS14 CS16 CS56B CS68B CS66B

BACKHOE LOADER

426C 436C 416C

WHEEL LOADER

972G 966G 938H 980K HLG 924HZ 972G II 993K 980K 966G II

COMPACT WHEEL LOADER

901C 902C 910F 910E 901C2 903 902 901 902C2 903C2 906H 903D 903C 907H 908H

ARTICULATED TRUCK

D20D D250D 740 GC 740 745

WHEELED EXCAVATOR

M320GC M322D MH M314 M315 M322 M320 M323 M318 M319 M316 M317 M320F M330D W330B M317D2 M325C MH M313-07 M315D2 MH3026 MH3024 M318D M318C M318F M315GC MH3040 M314-07 M324D2 MH M318D MH M323F M322D2 M322F M322D M322C W345B II M318C MH M315C M315D M316C M316F M316D M320D2 M313C M313D M325B M322D2 MH M314F

PNEUMATIC COMPACTOR

PS-200B PS-150C PS-150B

INDUSTRIAL ENGINE

C32 C18 C32B

QUARRY TRUCK

773E 772G 770G

WHEEL SCRAPER

637K

LOGGER

322C

TRACTOR

784B

GAS ENGINE

G3516

SITE PREP TRACTOR

586C 2864C

LOAD HAUL DUMP

R1700 R1700 XE

MATERIAL HANDLER

MH3250 M325D MH MH3260 MH3022 MH3024 MH3037 MH3032 MH3040 MH3049 MH3050 MH3295 MH3059 M325D L MH

GRAPPLE-ORANGE PEEL

GSH520 GSH420

OFF HIGHWAY TRUCK

794 AC 772 770 793D 775 773 793F 793

LOAD, HAUL, DUMP

R1700K

MOTOR GRADER

120H 16 14 18 120K 120 GC 135H 163H 140K 140H 140K 2 143H 140 GC 135H NA 163H NA 120H NA 140H ES 18M3 160H ES 12H NA 16M 120H ES 160 16H 16G 140H NA 14M 140 16GC 14H 14G 12H 12K 14M3 120 160K 160H 16H NA 160H NA 16M3 14M-3 12H ES 14H NA 120K 2

TRACK-TYPE TRACTOR

D5 D8 D11T D8 XE

ASPHALT PAVER

AP500 AP400 AP600 AP600F AP-1000F AP555 AP455 AP1000

MARINE AUXILIARY

C32

MARINE ENGINE

C32

PIPELAYER

PL83

FRONT SHOVEL

385C 5090B

VIBRATORY COMPACTOR

CS-56 CS-56B CS-68B CS-66B CP12 CP74B CS-74 CS-74B CS-64 CB-545 CP-64 CB-544 CP-56 CS12 CS14 CP-74 CB-224C CB-214C CS68B CS56B CP-56B CP-68B CP-74B CS74B CP68B CP56B

MOBILE HYD POWER UNIT

330D L 329D L 385C 323D LN 352FMHPU 323F OEM 390F 330D2 330FMHPU 385C L 336FMHPU 329E 340D2 L 336D L 349E L HVG 325D L 325C 349E 325D 336F 336D 336E 336E HVG 330F 330D 324D LN 330C 345C L

PETROLEUM PACKAGE

CX35-C18I

RIPPER SCARIFIER

16G

GENERATOR SET

C32 3512B

RECLAIMER MIXER

RM400 RM800

ENGINE

C32B INDUSTRIAL C27 INDUSTRIAL

LOCOMOTIVE ENGINE

C18

WATER DELIVERY SYSTEM

CAT WDS

EJECTOR TRUCK

740

COLD PLANER

PM820 PM825 PM822 PM620 PM622 PM-465

COMBAT VEHICLE ENGINE

C13

ROAD RECLAIMER

RM800 RM400 RM600

ENGINE - MACHINE

C27

CHALLENGER

MTC735 MTC745 MTC755 MTC765

SKID STEER LOADER

252B3 262C2 236 250 236B3 272C 248 246 262 260 252 262B 262C 265 252B 268B 256C 246B 246C 248B 236B

TRUCK

773G LRC 793F XQ 794 AC 793F CMD 775G 772G OEM 793F OEM 789B 775G OEM 770G OEM 797 770G 795F XQ 793D 793B 793C 793F 772G 773G 797F 773G OEM 785D 797B 785B 795F AC 793F AC MT4400D AC 775G LRC

WHEEL FELLER BUNCHER

573C 573D 563C 563D 553C 2570C 2570D 2470C 2670C 2670D

TRACK-TYPE LOADER

973

Related parts

228-7090: 1.78 x 12.47mm 90A FKM O-Ring

Cat® Rubber O-Ring Seal for ORFS Connector End

238-5080: 2.21 x 16.36mm 90A FKM O-Ring

Cat® O-Ring Seal for 3/4-16" STOR Connector End

3K-0360: 2.21 x 16.36mm 90A NBR O-Ring

Shop Cat® part 3k-0360 straight thread o-ring SAE SAE 3/4-16 thread (Lines Group, Engine).This STOR o-ring seal is engineered for static sealing resistant to wear.

6V-6609: 2.21 x 16.36mm 70A EPDM O-Ring

Cat® Rubber O-Ring Seal for 1/16-12" STOR Connector End

6V-8398: 1.78 x 12.47mm 90A NBR O-Ring

Cat® O-Ring Face Seal ensures a leak-free connection between hydraulic hoses and adapter

228-7090: 1.78 x 12.47mm 90A FKM O-Ring

238-5080: 2.21 x 16.36mm 90A FKM O-Ring

3K-0360: 2.21 x 16.36mm 90A NBR O-Ring

6V-6609: 2.21 x 16.36mm 70A EPDM O-Ring

6V-8398: 1.78 x 12.47mm 90A NBR O-Ring

Key

Factory Fit

This part is designed to fit your Cat equipment based on the manufacturer’s specifications.

Any changes to the manufacturer’s configuration might result in the product not fitting your Cat equipment. Please consult your Cat Dealer before purchasing to ensure that this part is appropriate for your Cat equipment in its current condition and assumed configuration. This indicator cannot guarantee compatibility for all parts.

Remanufactured

Non-Returnable

Kit

Replaced

Remanufactured

Non-Returnable

Kit

Replaced

To find the parts that fit.

To find the parts that fit.

8T-1687: 3/4" X 13/16" Straight Adapter

8T-1687: 3/4" X 13/16" Straight Adapter

Will It Fit?

Add your equipment to see if this part fits or if there are repair options available.

8T-1687

3K-0360

6V-8398

This part:

This part:

This part:

This part:

This part:

This part:

Description for part number 8T-1687

Specifications for part number 8T-1687

Material Description:

Steel

Length (in):

2.04

Material:

Carbon Steel

Hex Size (in):

0.87

Compatible Models for part number 8T-1687

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Will It Fit?

Add your equipment to see if this part fits or if there are repair options available.

Description for part number 8T-1687

Specifications for part number 8T-1687

Material Description:

Steel

Length (in):

2.04

Material:

Carbon Steel

Hex Size (in):

0.87

Compatible Models for part number 8T-1687

Parts diagram for 8T-1687

View Detailed Parts Diagrams

8T-1687

3K-0360

6V-8398

This part:

This part:

This part:

This part:

This part:

This part:

Frequently bought together

Frequently bought together