4B-3903: 5/16''-18 x 4'' Hex Head Bolt

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4B-3903: 5/16''-18 x 4'' Hex Head Bolt

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4B-3903: 5/16''-18 x 4'' Hex Head Bolt

Cat® Hex Head Bolt

Brand: Cat

4B-3903

3J-1907

214-7568

View All Parts

4B-3903: 5/16''-18 x 4'' Hex Head Bolt

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

214-7568: STOR O-Ring Seal (SAE 9/16-18)

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

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

238-5081: 2.46 x 19.18mm 90A FKM O-Ring

Diagram

Description

Specifications

Compatible Models

Description for part number 4B-3903

Description:
Cat® fastener parts are designed for specific applications based on size, strength, clamp load, and past performance. This is information other manufacturers do not have. They are selected to last until rebuild or the life of the machine. While it may seem as though non-Cat hardware and fasteners are suitable for your machine, no other company knows your equipment like we do.
Hex head bolts/screws offer the most robust driving feature.

Attributes:
•Cat fasteners are manufactured to precise specifications and are built for durability, reliability, productivity
•Strength & Quality – Fasteners meet or exceed ISO, ASTM, ASME & SAE requirements.
•Cat bolts, nuts, and washers are designed to work together as a system for maximum clamping force.
•Coatings that meet special requirements for different applications (RoHS compliant).

Applications:
Cat bolts and the matching hardened washers and nuts form a performance based system which produces consistently high clamp loads. You can trust Cat Fasteners to help you build it, maintain it, or fix it - for most machine and workshop applications throughout the world.

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.

Specifications for part number 4B-3903

Units of Measure

Metric

Compatible Models for part number 4B-3903

GENERATOR

SR4 SR5 SR4B

TRUCK ENGINE

1673 1676 1140 1150 3208 1145 1160 C15 3306C

INTEGRATED TOOLCARRIER

IT12

WHEEL TRACTOR-SCRAPER

613G

TRACK SKIDDER

D5HTSK II D4HTSK III 527 D4HTSK II 517

EXCAVATOR

225B 225D 229 225 231D

WHEEL TRACTOR

633E II 651E 615 613 611 615C II 631E 631G 623B 623G 623E 623F 621B 657E 621E 621F 657G 621G 621S 613C II 615C 627G 627E 627F 637G 613B 613C 637E

ROTARY MIXER

RM500B

HYDRAULIC CONTROL

183B

PETROLEUM ENGINE

3512C 3512B

PETROLEUM TRANSMISSION

TH48-E80

COMPACT WHEEL LOADER

910

WHEEL LOADER

980 995 G910 994F 994K 994H

ARTICULATED TRUCK

D550B D44B D20D D30C D30D D250E II D35C D300E D300D D300B D250E D250D D250B D25D D25C D350D D350C 740 D400E II 735 OEM 735 D300E II

ENGINE - INDUSTRIAL

CG170-16

INDUSTRIAL ENGINE

3516B C18 D342 D348 D349 D398B 3512B 3306 3412 D398 D399 D353C D353E D353D 3160 C15 D379 D379B

QUARRY TRUCK

775D 775B 773E 771D 771C

WHEEL SCRAPER

611 621E 657G 621F 657E 623F 623E 613C 627F 627E 615C

SPRAY AR

CAT WDS

LOGGER

227

TRACTOR

776D 776C 776B 768C 772B 784C 784B

GAS ENGINE

G398 G399 G3512H G353D G3516

BULLDOZER

7SU 6SU 7S LGP 8S 8U 4S 4P 6 5A 5P 5S 6A 6S 7A 7S 7U 8A 8SU 4A

PUMPER

SPF343C

UNDERGROUND ART TRUCK

AE40 AD45B AD55 AE40 II AD45 AD40

OFF HIGHWAY TRUCK

793D 773 785D 789 789D

WINCH

54H 57H 56H 57 56 55 54

BACKHOE

TRACK-TYPE TRACTOR

D6H XL D6H XR D6H II D10 D11 D4H III 30/30 D5H XL D5C III D4H D5M D5H D6M D6H D7R D7H D8R D8K D8N D8H D9E D9G D9H DEUCE D4H XL D11T

TRANSMISSION-MILITARY

7155

MARINE ENGINE

D379A D379B D399 D349 D348 D398A D398B D337 D336 3208

MARINE AUXILIARY

3516B 3512B 3508B

PIPELAYER

578 561M 583K 594H 594

STABILIZER MIXER

SM-350

VIBRATORY COMPACTOR

CS-553 CS-551 CP-553 CB-614

MOBILE HYD POWER UNIT

TH43-C18

PETROLEUM PACKAGE

TH48-E80 TH48-E70

GENERATOR SET

DE1400 D1250 G3520 G3516 G3512 G3516B G3516C D1000 G3516H C27 C32 DE1250S D800 XQP1100 C32 GEN SET 3516 3512 G3520H 3512B DE1500 3516C G3512H 3516B

RECLAIMER MIXER

RM-350B RM-350 RM500B RM-500

ENGINE

C15 C18 G3520

EJECTOR TRUCK

740 D400E II

COLD PLANER

PR-1000 PR-1000C

FOREST PRODUCTS

FB221

ROAD RECLAIMER

RM-350B RM500B RM500

ENGINE - MACHINE

3208 C4.4

GEN SET ENGINE

3406B 3145 3160 3150 D398B 3306B 3306 D379B 3208 POWER SYS G3520 G3516C 3508 D399 DE800S 3512 3516

TRANSMISSION

7155

RIPPER

8D 7 6 5 4 8

TRUCK

785 789 793 793D 793B 793C 69D 773E 773D 785C 785D 773B 785B 775E 775D 789C 789D 777C 777B 789B 777D 772 770 769D 769C

Related parts

5S-0003: 5/16''-18 Hex Nut

Cat® 5/16"-18 Steel Hex Nut

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9M-1974: M8 ID Steel Flat Washer

Cat® Flat Washer, ID X OD X T: 8.8 X 16 X 2 mm

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3E-4352: M8 ID Steel Flat Washer

Cat® Flat Washer, ID X OD X T: 8.8 X 20.5 X 2.5 mm

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5S-0003: 5/16''-18 Hex Nut

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9M-1974: M8 ID Steel Flat Washer

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3E-4352: M8 ID Steel Flat Washer

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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