Perkins 1104 & 1106 Turbocharger Replacement Guide — OEM Parts & Cross-Reference | HHX PARTS

Perkins 1100 Series: The Engine Behind a Generation of Agricultural and Construction Equipment

The Perkins 1100 series — spanning the 1104 y 1106 engine families — is one of the most widely deployed diesel engine platforms in the global agricultural, construction, and industrial equipment markets. Developed by Perkins Engines (a Caterpillar subsidiary since 1997), these four- and six-cylinder turbocharged engines power an extraordinary range of machines across every inhabited continent.

From JCB backhoe loaders working on African construction sites, to Massey Ferguson tractors harvesting crops in Eastern Europe, to Caterpillar C4.4 and C6.6-badged equipment built on the same platform — the Perkins 1104 and 1106 represent one of the most important turbocharger replacement markets in the global aftermarket.

At Piezas HHX, we manufacture and supply OEM-grade replacement turbochargers for the full Perkins 1100-series platform, with direct factory pricing, complete OEM cross-referencing, and technical support for the industry’s most experienced and most demanding buyers.

Engine Family Overview: Perkins 1104 vs 1106

A critical note for buyers: Caterpillar C4.4 and C6.6 engines are mechanically identical to the Perkins 1104 and 1106 respectively — they share the same turbocharger platform. Many turbocharger OEM part numbers cross-reference between the Perkins and CAT naming conventions. Always verify against the turbocharger data plate rather than relying on the equipment brand alone.

OEM Turbocharger: The Garrett GT2556S Platform

The dominant turbocharger across the Perkins 1104 and many 1106 applications is the Garrett GT2556S — a mid-frame single-scroll turbocharger well-suited to the power density and duty-cycle demands of agricultural and construction equipment. Key characteristics:

• Turbo model: Garrett GT2556S (primary) / GT2052 (lower-power 1104 variants)
• Bearing system: Journal (sleeve) bearings
• Compressor housing: Cast aluminium, single scroll
• Turbine housing: Cast iron or ductile iron, various A/R ratios by application
• Boost pressure range: 1.4–2.0 bar (absolute) depending on power rating and emission tier
• Oil inlet: M12 banjo fitting (top of bearing housing)
• Oil drain: Flange-mount (bottom of bearing housing)

OEM Cross-Reference Part Numbers by Application

The Perkins 1100 series turbocharger numbering system uses Perkins-specific “2674A” prefix numbers alongside Garrett and CAT cross-references. Verify against the number stamped on the original turbocharger’s data plate:

Perkins 1104 Series — 4.4L Four-Cylinder

Perkins 1106 Series — 6.6L Six-Cylinder

Legacy Perkins — Older Series Still in Service

HHX PARTS In-Stock Products for Perkins Engines

The following turbochargers for Perkins 1104, 1106, and legacy series engines are available directly from HHX PARTS. Click any product to view full specifications and request pricing:

Perkins 1104 / 4.4L — GT2556S Series

• GT2556S Turbocharger 5586976 / 2674A223 — For CAT / Perkins 1104C-44T / 1104C-44TA engine
• GT2556S Turbocharger 317-2508 / 2674A202 / 711736-5003 — For Perkins 1104D T4.40 / CAT C4.4 Acert
• GT2556S Turbocharger 5586972 / 711736-0003 — For Perkins / Massey Ferguson 5455 4.4L 101kW
• GT2556S Turbocharger 02/203160 / 02203160 — For Perkins T4.40 engine in JCB 3CX, 4CX, 214-4, 217-4, 215S
• GT2052 Turbocharger 727263-5001 / 219-9733 / 148-7183 — For Perkins 1004.4T / T4.40 4.0L tractor and loader

Perkins 1106 / 6.6L and Legacy Series

• GT3571 Turbocharger 235-9694 / 709942-5009S — For Perkins VISTA 6 / CAT Wheel Loader 928G, 930G, 924G
• 3LD Turbocharger 446718 / 146718 / 702277091 — For Navistar / Perkins / Ford Agricultural 6.70L
• TA3107 Turbocharger 7C3446 / 2674397 / 465778-5017S — For Perkins C4.236 / T4.236 engine and Caterpillar 3054
• S1B Turbocharger 317257 / 173-0442 / 2674A177 — For Perkins Industrial 704-30T engine

Need a part number not listed above? Our technical team covers the complete Perkins 1100-series catalogue including 1103, 1104A, 1104C, 1104D, 1106C, and 1106D variants. Send us your Perkins OEM number or equipment serial and we will respond within 24 hours.

Common Applications: Where Perkins 1104 and 1106 Engines Are Found

Maquinaria agrícola

• Massey Ferguson — 5400, 5600, 6400 tractor series (1104-based Perkins 4-cylinder)
• AGCO / Fendt — various tractor lines using Perkins 1106-derived engines
• Challenger tractors — MT500 and MT600 series (Perkins 1106)
• Various African and Asian market tractors — Perkins is the dominant engine in developing-market agriculture

Construction and Material Handling

• JCB — 3CX, 4CX backhoe loaders (Perkins / JCB DieselMax 4.4L); 525, 531, 535 telehandlers
• Caterpillar — C4.4 and C6.6 ACERT machines including 420E/F backhoe loaders, 420F2, 415F2, 428F2; compact wheel loaders 906H, 907H
• Manitou — MT625, MT735 telehandlers with Perkins 1104
• Lull / Skytrak — North American telehandlers with Perkins powerplant

Power Generation

• Perkins 1104A-44TG1 / TG2 — 50–80 kVA diesel generator sets
• Perkins 1106A-70TG1 / TG2 — 100–150 kVA generator sets
• Widely used in standby and prime power applications across Africa, South Asia, and Southeast Asia

Industrial and Marine

• Pump drives, compressor drives, marine auxiliary power
• Perkins 704-30T — smaller industrial applications (S1B turbocharger)

6 Warning Signs Your Perkins 1104 / 1106 Turbocharger Is Failing

1. Black smoke at full throttle or under draft load (tractors) — the most common early symptom in agricultural applications. A worn GT2556S compressor wheel reduces boost, causing the fuel injection pump to deliver more fuel than available air can burn. Visible under heavy tillage or PTO loads.
2. Loss of lift capacity or power on telehandlers and loaders — reduced boost pressure directly limits hydraulic pump output on Perkins-powered telehandlers. Operators report that the machine feels “soft” or struggles to reach rated lift height at full load.
3. Oil-fouled air filter housing or intercooler pipes — a reliable early detection method for GT2556S compressor seal failure. Pull the intake pipe between the turbo and intercooler and inspect for an oily film on the inside surface. Catching this early prevents intercooler contamination.
4. Whistling or whining under acceleration — bearing wear on the GT2556S produces a characteristic high-pitched whine that changes with engine RPM. Agricultural operators often mistake this for normal noise — any change in turbo sound character warrants inspection.
5. Hard starting after hot shutdown (generator sets) — oil coking in the feed line after hot shutdown is a classic failure mode on Perkins generator sets that are shut down immediately after load. The restricted feed line starves bearings on the next start.
6. Excessive crankcase pressure (blow-by) — on high-hour Perkins 1104 engines, turbo seal failure allows combustion gases to enter the crankcase via the oil drain circuit, increasing blow-by pressure. Check the crankcase ventilation system before attributing excess blow-by to piston ring wear alone.

Perkins-Specific Failure Patterns to Know

• Dust ingestion on African agricultural sites — the Perkins 1104 is extensively used in African agriculture where road dust and harvest chaff rapidly block air filters. Many GT2556S failures in this region trace directly to a bypassed or missing pre-cleaner. Always replace the air filter as a mandatory part of every turbocharger replacement.
• Blocked oil drain on JCB 3CX and 4CX — the engine bay packaging on JCB backhoe loaders routes the turbo oil drain line through a section prone to kinking over time. A partially kinked drain line causes oil to back up into the bearing housing, overwhelming the shaft seals. Inspect and replace the drain line hose at every turbo replacement.
• CAT C4.4 ACERT VGT actuator confusion — later CAT C4.4 ACERT engines used a variable geometry turbocharger (VGT) with an electronic actuator, while earlier Tier 2 Perkins 1104-based machines use the fixed-geometry GT2556S. These are not interchangeable. Confirm the emission tier and engine serial number before ordering.
• Generator set cool-down neglect — Perkins gensets are frequently shut down under load without any idle-down period, a practice that causes oil to coke inside the GT2556S bearing housing over hundreds of cycles. Implementing a 3-minute idle-down routine before shutdown is the single most effective life-extension measure for generator set turbos.

Specification Checklist for Ordering

The Perkins 1100 series spans multiple emission tiers and sub-variants. Correct specification requires:

• Engine model suffix — 1104C, 1104D, 1106C, 1106D, 1106A are all different. The letter suffix indicates the emission generation.
• Turbocharger data plate number — the “2674A” prefixed number stamped on the existing turbo is the most reliable cross-reference point
• Equipment make and model — JCB 3CX, Massey Ferguson 5455, CAT 420F, etc. — helps resolve ambiguous cross-references
• Fixed geometry or VGT — later Tier 4 Final engines may use VGT; earlier Tier 2/3 use fixed GT2556S. Confirm before ordering.
• Market / emissions specification — European Stage IIIB and North American Tier 4 Interim machines use different turbo calibrations even within the same engine family

Why HHX PARTS for Perkins Turbochargers?

• Full 1100-series coverage — 1103, 1104A/C/D, 1106A/C/D and older series including C4.236, T4.236, 704-30T
• CAT C4.4 / C6.6 cross-referencing — we maintain cross-references between Perkins and CAT part numbering conventions
• New OEM-grade GT2556S and GT2052 units — dynamically balanced, flow-bench tested before shipment
• 7-day lead time on stocked GT2556S variants; 20-day for lower-volume applications
• Factory-direct pricing — significant savings versus Perkins dealer or equipment OEM parts pricing
• Global supply — active distribution to agricultural dealers, construction equipment workshops, and generator set service centres across Africa, Europe, Southeast Asia, and the Middle East

Further Reading

• The Complete Turbocharger Buyer’s Guide: 8 Costly Mistakes to Avoid
• Caterpillar C7, C9, 3116 & 3126 Turbocharger Replacement Guide
• Komatsu Excavator Turbocharger Guide — SAA6D107, SAA6D114 & More
• Turbocharger Complete Guide 2025 — How It Works, Failure Symptoms & Maintenance

Request a Quote for Your Perkins Turbocharger

Send us your Perkins OEM part number (2674A-prefix), engine model suffix, or equipment make and model — and we will confirm availability, pricing, and lead time within 24 hours.

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