• Monday - Friday: 8.30am - 5.00pm
£0.00 0

Basket

No products in the basket.

Re-Manufactured Ford 7840 Tractor Engine

Ford Genesis Six-Cylinder Power, Naturally Aspirated

Timik Engines supplies fully re-manufactured naturally aspirated diesel engines for the Ford 7840 tractor, part of Ford’s PowerStar 40 Series built at the Basildon factory in Essex.

Manufactured between 1991 and 1995, the 7840 replaced the 10 Series tractors and introduced a more refined cab, improved hydraulics, and updated transmission options. It was available in three variants: the 7840S with an eight-speed transmission, the 7840SL with a 12-speed SynchroShift, and the 7840SLE with a 16-speed Pulse Command powershift and closed-centre load-sensing hydraulics.

The 7840 sat at the centre of the PowerStar 40 range, offering enough power for serious arable and livestock work while remaining manageable for general farm use. Available in two-wheel and four-wheel drive configurations, it was widely adopted across mixed farms and arable operations throughout the UK and Ireland.

The Ford Genesis engine at its core was a significant step forward from the earlier 10 Series units, featuring a 12-valve head and revised injection equipment designed to deliver improved efficiency and cleaner combustion.

The tractor’s combination of accessible power and mechanical straightforwardness has given it a strong following among operators who service their own machinery.

The naturally aspirated engine fitted to the Ford 7840 is the Ford Genesis six-cylinder, liquid-cooled diesel, displacing 6.6 litres with a square bore and stroke of 112 x 112mm. It is rated at 100hp (73.5kW) at 2,100rpm, with a compression ratio of 17.5:1 and a firing order of 1-5-3-6-2-4.

Timik Engines re-manufactures this unit to full specification, restoring the block, cylinder head, crankshaft, and rotating assembly to original factory tolerances. Where a 7840 engine has accumulated significant hours or shows signs of wear, a fully re-manufactured unit is the most reliable and cost-effective route back to full working order.

Key Features of the Re-manufactured Ford 7840 Naturally Aspirated Diesel Tractor Engine:

  • Ford Genesis six-cylinder naturally aspirated design with 12-valve cylinder head.
  • 6.6L displacement with a square 112 x 112mm bore and stroke.
  • 100hp (73.5kW) at 2,100rpm, compression ratio 17.5:1.
  • Direct injection fuel system.
  • Suitable for 7840S, 7840SL, and 7840SLE variants.
  • Compatible with two-wheel and four-wheel drive configurations.

Ford 7840 Engine technical specification

Displacement
6.6L
Configuration
6-cylinder inline
Induction
Naturally aspirated
Fuel system
Direct injection
Production years
1991–1995
Applications
Ford 7840 tractor (PowerStar 40 Series)

How we rebuild the Ford 7840 Engine

Step 01

Core Restoration

The engine block is bored back to standard with new liners fitted. The cylinder head is remanufactured with valve seats re-cut and new valves fitted. The crankshaft is ground to precise tolerances.

Step 02

Reassembly

All engines are rebuilt in our clean workshop with new pistons and rings, bearings, oil pump, water pump, and complete gasket set. Fuel injection equipment is remanufactured and turbochargers replaced where applicable.

Step 03

Quality Assurance

Every engine is dynamometer tested to confirm correct power output, oil pressure, and operating temperatures. Engines are painted and prepared for delivery with full documentation.

Guide pricing

Prices exclude VAT.

Engine as described from £5,050 + VAT
Block porosity treatment £350 + VAT (optional)

What is block porosity treatment?

Ford tractor engine blocks are prone to microscopic pores and casting voids that can allow coolant to seep into the oil over time. Block porosity treatment seals these voids using a vacuum impregnation process, where resin is drawn into any leakage paths and cured under pressure. This significantly extends engine life and reduces the risk of coolant contamination after rebuild. We recommend this treatment for all Ford engines where long-term reliability is a priority.

Exchange policy

All engines are supplied on an exchange basis. You send us your existing engine and we return a fully remanufactured unit. If you do not have a donor engine, contact us to discuss surcharge options.

Donor engine requirements

Donor engines must be complete (block, head, crankshaft, and major castings intact). Engines with severe damage may incur additional charges. Contact us before dispatch for assessment.

Enquire about this engine

Engine Enquiry

BSI AU 257:2002

All our remanufactured engines meet BSI AU 257:2002, the British Standard for engine reconditioning. We are members of the Federation of Engine Re-manufacturers (FER).

Timik Engines Logo

Timik Agricultural Ltd, Church House Farm, Clewers Hill, Waltham Chase, Southampton, SO32 2LN, United Kingdom

© 2026 Timik Agricultural Limited | Company Registration Number: 01241030 | VAT Registration Number: GB305229922 | Made with ❤️ by SushiWP