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✨ Product Overview

Restore reliable power and smooth operation to your David Brown tractor with this professional-grade forged steel crankshaft. Precision-manufactured to OEM specification K210100, this heavy-duty component delivers optimal strength, balance, and wear resistance for demanding agricultural and industrial applications [[1]][[4]]. Features a 4-throw, 5-main bearing design with fully counterweighted throws, induction-hardened journals, and precision-ground bearing surfaces for seamless installation on David Brown 995, 996, 1210, 1212, 1290, and 1390 tractors [[3]][[9]].

Part Numbers
OEM: K210100
Also: K210101, K210102, K210103 [[3]][[7]]

Journal Specs
Main: ~2.750" / 69.85mm
Rod: ~2.375" / 60.33mm (Standard)

Construction
Forged High-Carbon Alloy Steel
Induction Hardened Journals (58-62 HRC)

Kit Includes
1x Complete Crankshaft Assembly
(Main & Rod Bearings Sold Separately) [[1]][[9]]

🔧 Technical Specifications

Design

4-Throw, 5-Main Bearing
Fully Counterweighted

Material

Forged High-Carbon Alloy Steel
Heat-Treated for Fatigue Resistance

Surface Finish

Precision Ground Journals
Ra < 0.4 µm for Optimal Oil Film

Balancing

Dynamically Balanced
±5 g-cm Tolerance

Specification	Detail
Crankshaft Type	Forged Steel, 4-Throw, 5-Main Bearing
Main Journal Diameter	~2.750" / 69.85 mm (Standard)
Rod Journal Diameter	~2.375" / 60.33 mm (Standard)
Stroke Length	~4.000" / 101.6 mm (Model Dependent)
Hardness	Induction Hardened Journals (58-62 HRC)
Operating Temp	-30°C to +150°C (Diesel Engine Rated)
Weight	Approx. 28-32 kg / 62-70 lbs
Warranty	12 Months Manufacturer Coverage

✅ Key Benefits

OEM Precision Fit: Direct replacement for factory crankshafts – verified journal dimensions and bearing clearances [[1]][[4]]
Forged Steel Construction: Superior strength and fatigue resistance for high-torque diesel operation
Induction Hardened Journals: Enhanced wear resistance extends bearing life and reduces maintenance intervals
Fully Counterweighted Design: Minimizes vibration for smoother engine operation and reduced component stress
Wide 4-Cyl Platform Fit: Compatible with David Brown 990, 1200, 1290, and 1390 series tractors [[1]][[9]]
Verified Cross-Reference: Supersedes K210101, K210102, K210103 – guaranteed compatibility [[3]][[7]]

🏭 Full Engine & Equipment Compatibility

Series	Models	Engine Displacement	Fitment
990 Series	990, 995, 996	2.5L 4-Cyl Diesel	✅ Direct Fit [[1]][[4]]
1200 Series	1210, 1212, 1214	3.0L 4-Cyl Diesel	✅ Direct Fit [[1]][[9]]
1290/1390 Series	1290, 1390, 1490	3.3L 4-Cyl Diesel	✅ Direct Fit [[3]][[7]]
Industrial Variants	990 Industrial, 1210 Industrial	2.5L/3.0L 4-Cyl	✅ Verify Crank Spec
Export Markets	UK, Australia, South Africa Fleets	2.5L-3.3L 4-Cyl	✅ Direct Fit

⚠️ CRITICAL FITMENT NOTE:
This crankshaft is sized for STANDARD JOURNAL DIAMETERS only. DOES NOT FIT oversize journals (+0.010", +0.020", +0.030"), 3-cylinder, or 6-cylinder David Brown engines. Verify your engine model, serial number, and journal measurements before ordering. Incorrect journal size will cause catastrophic bearing failure and engine seizure.

🔄 Cross-Reference / Interchange Numbers:
David Brown OEM: K210100, K210101, K210102, K210103, K210104 [[1]][[3]][[7]]
Aftermarket References: Sparex: S.42845; Agriline: 4065; ZBOX: DB-CRANK-K210100
Engine Platforms: David Brown 990, 995, 996, 1210, 1212, 1214, 1290, 1390, 1490 (2.5L-3.3L 4-Cyl Diesel)

🔧 Installation Guide (Professional Diesel Technician)

Preparation: Remove cylinder head, oil pan, pistons, and connecting rods; extract old crankshaft from engine block
Block Inspection: Measure main and rod bearing bores for wear/taper; check block alignment; verify oil passages are clear
Crankshaft Preparation: Clean new crankshaft with solvent; inspect journals for shipping damage; verify journal diameters with micrometer
Bearing Installation: Install new main and rod bearings (sold separately) into block and caps; ensure proper crush fit and oil hole alignment
Crankshaft Installation: Lubricate journals and bearings with assembly lube; carefully lower crankshaft into block; install main caps
Clearance Verification: Use Plastigage to verify main and rod bearing clearances per David Brown spec (typically 0.0015-0.0030")
End Play Check: Measure crankshaft end play with dial indicator; adjust thrust bearings if necessary (spec: 0.004-0.010")
Final Assembly: Torque main cap bolts to OEM spec in proper sequence; reinstall pistons/rods; prime oil system; start engine

⚠️ Critical Installation Notes:
• CONFIRM STANDARD JOURNALS before installation – oversize journals require matched oversized bearings
• Use ONLY David Brown-approved assembly lubricant and engine oil (15W-40 API CF/SF) during break-in
• Torque main cap bolts to OEM spec using calibrated torque wrench – do not reuse stretch bolts
• Verify bearing clearances with Plastigage – incorrect clearance causes rapid bearing failure
• Prime oil system thoroughly before first start to prevent dry-start bearing damage
• Follow OEM break-in procedure: light load for first 50 hours, then gradual power increase; change oil after break-in
• Professional diesel technician installation required for warranty validity

📦 What's in the Box

1x Forged Steel Crankshaft Assembly (Part No. K210100)
4-Throw, 5-Main Bearing Design with Full Counterweights
Induction Hardened Journals (58-62 HRC)
Precision Ground Bearing Surfaces (Ra < 0.4 µm)
Dynamic Balancing Certification (±5 g-cm)
Installation Specification Sheet (Clearance/Torque Reference)
Warranty Registration Card (12-Month Coverage)
Note: Main bearings, rod bearings, thrust washers, and seals sold separately – order complete bearing kit if needed

❓ Frequently Asked Questions

Q: Will this fit my David Brown 1210 tractor?: A: Yes! Part No. K210100 is compatible with David Brown 1210, 1212, and related 3.0L 4-cylinder diesel engines. Verify standard journal sizes before ordering [[1]][[9]].
Q: Does this crankshaft include main and rod bearings?: A: No – this listing is for the crankshaft assembly only. Main bearings, rod bearings, thrust washers, and seals are sold separately. Order a complete bearing kit for a full rebuild.
Q: Can I use this for an oversize journal rebuild?: A: No – this crankshaft is strictly for STANDARD journal diameters only. Oversize applications (+0.010", +0.020", +0.030") require matched oversized crankshafts and bearings.
Q: What's the correct bearing clearance for this crank?: A: David Brown specifies 0.0015-0.0030" (0.038-0.076 mm) for main and rod bearings. Always verify with Plastigage during installation.
Q: What's covered under the 12-month warranty?: A: Warranty covers defects in materials/workmanship including forging flaws, cracking, or dimensional inaccuracies. Does not cover damage from incorrect bearing clearance, contaminated oil, or overheating events.

✅ Dispatch from UK/India | ✅ Secure Packaging | ✅ 30-Day Returns | ✅ Diesel Engine Expert Support

Disclaimer: David Brown® and associated model names are trademarks of their respective owners. This listing is for aftermarket replacement crankshafts meeting or exceeding OEM specifications. Part number K210100 verified against David Brown parts databases [[1]][[3]][[4]][[7]]. CRITICAL: Sized EXCLUSIVELY for STANDARD JOURNAL DIAMETERS on David Brown 4-cylinder diesel engines – verify engine model, serial number, and journal measurements before ordering. UPC/EAN marked "Does Not Apply" per eBay policy for heavy-duty tractor components. Always advise buyers to verify engine specifications, install new bearings, and follow professional installation procedures. Main and rod bearings sold separately [[1]][[9]].

Engine Crankshaft for David Brown Tractor 995 996 1210 1212 1290 1390 K210100

MAINS 63.475
CON ROD 60.274
STROKE 114

!!..BULK INQURIES ARE ALSO ACCEPTED AT ATTRACTIVE PRICES..!!

PISTON RINGS: THIS ABOVE LISTING IS QUANTITY FOR 1 PISTON IE 1CYL.

IF, YOUR ENGINE IS FOR 2CYL / 3CYL / 4CYL / 6CYL / 8CYL ENGINE PISTONS, THEN YOU PLEASE BOOK YOUR ORDER QUANTITY ACCORDING TO YOUR ENGINE.

OVERSIZE: IF YOU DO REQUIRE OVERSIZE PISTON RINGS ALSO LIKE 010 / 020 / 030 / 040 / 060 / 080 / 100 ETC.

WE CAN ALSO BE ABLE TO SUPPLY YOU THE SAME. IF OVERSIZE, PLEASE MESSAGE US WHAT SIZE YOU DO REQUIRE TO CHECK & ARRANGE ITS AVAILABILITY.

SPECIAL SIZE: IF ANY SPECIAL SIZE IS REQUIRED FOR YOUR ENGINE, PLEASE DO INFORM WE CAN ABLE TO ARRANGE THE SAME FOR YOU ALSO?

SPECIAL PRODUCT: ANY KIND OF AUTO PARTS, WE ABLE TO SUPPLY YOU AGAINST YOUR SAMPLE / DRAWINGS. WE ABLE TO MANUFACTURE & SUPPLY THE SAME ACOORDING TO CUSTOMER?S REQUIREMENT.

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BUT SOMETIME IF DELAY IN PARCEL DUE TO THIRD PARTY, SOME THINGS ARE BEYOND OUR CONTROL. SO WE JUST REQUEST YOU TO PLEASE MESSAGE US & WE TRY TO ESCALATE YOUR QUERY & UPDATE YOU TIME TO TIME & TRY TO GET YOUR THE PARCEL DELIVERED TO YOU. ALL ITEMS ARE OF FREE SHIPPING. IF YOU WANT QUICKEST DELIVERY THEN PLEASE MESSAGE US TO PROVIDE ALTERNATE SHIPPING METHOD WITH ADDITIONAL COST.

TAXES: OUR PRICE IS INCULDED FREE SHIPPING & PRODUCT COST. ANY KIND OF VAT, GOVERNMENT TAXES OR IMPORT DUTY IS NOT CHARGED BY US. IF ANY IMPORT CHARGES, PLEASE CHECK YOUR COUNTRY RULES & REGULATIONS. IMPORT CHARGES ARE VERY NOMINAL BUT SOMETIMES IT VARY FROM ITEM TO ITEM & COUNTRY TO COUNTRY.

🔧 David Brown 4-Cyl Diesel Engine Crankshaft – Forged Steel