Shop by Brand

New Holland Agriculture
New Holland Construction
All brands
All models

Help & Support

Shipping & Delivery
Payment Methods
Return Policy
Order Information
Contact

Visit Us

31 Meadow StClinton, NY 13323

Closed · opens today 8:00 AM

Follow Us

Clinton Tractor & Implement Co.Since 1953All rights reserved © 2026

Privacy Policy Terms of Service

Skip to content

Parts Store Parts Diagrams

Search by manufacturer, assembly, or parts⌘K

/

/

·

⌘K

SCREW 5/16'' - 18 x 7/8'', Full Thd, Dog Pt — New Holland C5NNC838A | CROP

Parts
New Holland
Exhaust & Emissions
SCREW 5/16'' - 18 x 7/8'', Full Thd, Dog Pt

SCREW 5/16'' - 18 x 7/8'', Full Thd, Dog Pt

Part #C5NNC838A

Fits: New Holland 655A, Ford 4000-SERIES, Ford 4500, New Holland 455, New Holland 455C + 8 more

About this part

Fits 13 variants across 11 series:

3/4 CYL 65-75 (2)

Ford 4000-SERIES
Ford 4500

TLB (2)

New Holland 455
New Holland 550

5 Series (1)

New Holland 655

A Series (1)

New Holland 655A

A Series Tl/tlb (1)

New Holland 555A

B Series (1)

About this part

Brand

New Holland

Part Number

C5NNC838A

SKU

CT-NHL-C5NNC838A

Category

Exhaust & Emissions

Warning

For California Residents Only: Cancer and Reproductive Harm www.p65warnings.ca.gov

About this part

SCREW 5/16'' · 18 x 7/8'', Full Thd, Dog Pt

Availability pending

We're confirming stock and pricing for this part. Contact our parts counter to reserve it.

support@clintontractor.net · (315) 853-6151

This Part Fits

Parts Diagrams

Most Popular New Holland Parts

Top 6 of 184 best sellers

Hydraulic Oil — New Holland — 73341774

PN: 73341774

Wet Battery 12V,'' 300 Cca'','' 5-13/16'' W x 7-5/16'' H x 7-3/4'' L'' — fits 43 New Holland models — F350DSW

Wet Battery 12V,'' 300 Cca'','' 5-13/16'' W x 7-5/16'' H x 7-3/4'' L'' — fits 43 New Holland models — F350DSW

PN: F350DSW

Hydraulic Oil — New Holland — 73344274

PN: 73344274

Hydraulic Oil — New Holland — 73344268

PN: 73344268

Attachment Long Tine for New Holland E57C / E60C — 48058021

PN: 48058021

Wet Battery 12V,'' 1200 Cca'','' 8-1/8'' W x 8-1/8'' H x 20'' L'' — fits 121 models across the CNH lineup — F150DSW

Wet Battery 12V,'' 1200 Cca'','' 8-1/8'' W x 8-1/8'' H x 20'' L'' — fits 121 models across the CNH lineup — F150DSW

PN: F150DSW

This Part Fits

Light Equipment

10

FordFord 45002 schematics
New Holland 5502 schematics
New Holland 5552 schematics
New Holland 555A2 schematics
New Holland 555B2 schematics
New Holland 6552 schematics
New Holland 655A2 schematics
New Holland 4551 schematic
New Holland 455C1 schematic
New Holland 455D1 schematic

Material Handling

2

FordFord 19-5211 schematic
New Holland 740-SERIES1 schematic

Tractors

1

FordFord 4000-SERIES2 schematics

New Holland 555B

C Series (1)

New Holland 455C

D Series (1)

New Holland 455D

Legacy (1)

Ford 19-521

Loader Attach (1)

New Holland 740-SERIES

Tl/tlb (1)

New Holland 555

Often Bought Together

Service Manuals

Manual Pages

Related Shorts

Related Videos

Part Number History

Replaces

81812088

Current

C5NNC838A this part

Related Shorts

13

From Above: New Holland The T6.180 Carves a Hayfield Clean #shorts

From Above: New Holland The T6.180 Carves a Hayfield Clean #shortsClinton Tractor & Implement Co.

Watch the New Holland B115D Switch Between Two Jobs Without Stopping #shorts

Watch the New Holland B115D Switch Between Two Jobs Without Stopping #shortsClinton Tractor & Implement Co.

This New Holland Articulated Loader Timelapse Hits Hard | Spring Is Almost Here"

This New Holland Articulated Loader Timelapse Hits Hard | Spring Is Almost Here"Clinton Tractor & Implement Co.

Watch the FR550 Reload a Wagon Without Stopping #shorts

Watch the FR550 Reload a Wagon Without Stopping #shortsClinton Tractor & Implement Co.

Watch This New Holland Tear Through a Field Before Planting #shorts

Watch This New Holland Tear Through a Field Before Planting #shortsClinton Tractor & Implement Co.

New Holland T7 Triple Mower Setup Timelapse is NO Joke | Spring Is HERE #shorts

New Holland T7 Triple Mower Setup Timelapse is NO Joke | Spring Is HERE #shortsClinton Tractor & Implement Co.

Watch the New Holland B115D Cut a Trench Straight Through the Dirt #shorts

Watch the New Holland B115D Cut a Trench Straight Through the Dirt #shortsClinton Tractor & Implement Co.

She’s not my only one…

She’s not my only one…Clinton Tractor & Implement Co.

New Holland ProTed 3417 Tedder Fluffing First Cut to Dry Faster#shorts

New Holland ProTed 3417 Tedder Fluffing First Cut to Dry Faster#shortsClinton Tractor & Implement Co.

How the FR550 Gets a Perfect Chop Every Time #shorts

How the FR550 Gets a Perfect Chop Every Time #shortsClinton Tractor & Implement Co.

Watch the New Holland T6.180 Tear Through Waist-High Grass #shorts

Watch the New Holland T6.180 Tear Through Waist-High Grass #shortsClinton Tractor & Implement Co.

New Holland T7.270 + Marcrest Bale Baron 5250P — Bale to Bundle in One Pass #shorts

New Holland T7.270 + Marcrest Bale Baron 5250P — Bale to Bundle in One Pass #shortsClinton Tractor & Implement Co.

Two Balers, One Hay Season — New Holland Hayliner & Marcrest Bale Baron #shorts

Two Balers, One Hay Season — New Holland Hayliner & Marcrest Bale Baron #shortsClinton Tractor & Implement Co.

Related Videos

7

Hay Season at Clinton Tractor — Baling & Loading Square Bundles with New Holland + Bale Baron

Hay Season at Clinton Tractor — Baling & Loading Square Bundles with New Holland + Bale BaronClinton Tractor & Implement Co. · 4:18

Baling Light Windrows: T7.175 + Roll-Belt 451 Tackle Second Cut Hay

Baling Light Windrows: T7.175 + Roll-Belt 451 Tackle Second Cut HayClinton Tractor & Implement Co. · 17:21

New Holland T9 & Harvester Working Hard — Harvest Season in Central New York | Clinton Tractor

New Holland T9 & Harvester Working Hard — Harvest Season in Central New York | Clinton TractorClinton Tractor & Implement Co. · 19:40

Watch This New Holland W80C Crush Through Spring Cleanup in Clinton, NY

Watch This New Holland W80C Crush Through Spring Cleanup in Clinton, NYClinton Tractor & Implement Co. · 6:03

Hay Season Equipment: Cut, Rake, Bale & Wrap — The Full Lineup at Clinton Tractor

Hay Season Equipment: Cut, Rake, Bale & Wrap — The Full Lineup at Clinton TractorClinton Tractor & Implement Co. · 2:54

This BEAST Handles EVERYTHING — New Holland W100 Walk Around You NEED to See.mp4 #shorts

This BEAST Handles EVERYTHING — New Holland W100 Walk Around You NEED to See.mp4 #shortsClinton Tractor & Implement Co. · 1:25

Inside the Shop: T5s, PowerStars, and Kinze Planters Before Spring Hits

Inside the Shop: T5s, PowerStars, and Kinze Planters Before Spring HitsClinton Tractor & Implement Co. · 6:36

Found on 6 parts diagrams

Control Valve Assembly

Ref 53 · 81 hotspots

Hydraulic SystemsFord 4000-SERIES

Control Valve Assembly

Control Valve Assembly, Two Spool

Ref 63 · 104 hotspots

Hydraulic SystemsNew Holland 455

Control Valve Assembly, Two Spool

SELF-LEVELING LOADER CONTROL VALVE ASSEMBLY

Ref 71 · 102 hotspots

Hydraulic SystemsFord 4000-SERIES

SELF-LEVELING LOADER CONTROL VALVE ASSEMBLY

Control Valve Assembly, Three Spool

Ref 71 · 182 hotspots

Hydraulic SystemsNew Holland 550

Control Valve Assembly, Three Spool

CONTROL VALVE ASSEMBLY 4-IN-1 DROTT -740, 19-521, GROUP 11-3

Ref 90 · 132 hotspots

Complete MachineFord 19-521

CONTROL VALVE ASSEMBLY 4-IN-1 DROTT -740, 19-521, GROUP 11-3

Control Valve Assembly, Two Spool

Ref 71 · 139 hotspots

Hydraulic SystemsNew Holland 550

Control Valve Assembly, Two Spool

Often Bought Together

Sealing Ring Collar — fits 27 CNH models — 527294

Sealing Ring — fits 48 CNH models — 7700243

Seal — fits 69 models across the CNH lineup — C5NNC837A

Seal — fits 31 New Holland models — 7707105

Sealing Ring Collar — fits 27 CNH models — 527294

Sealing Ring — fits 48 CNH models — 7700243

Seal — fits 69 models across the CNH lineup — C5NNC837A

Seal — fits 31 New Holland models — 7707105