John Deere Low Actuator Reman Turbocharger DZ114777
Shipping & Returns
Ships same day if ordered before 3 PM Central (in-stock items); backorder items ship within 1–2 business days. Free shipping on orders over $500. 30-day hassle-free returns on eligible items. A refundable core deposit applies to remanufactured units — return your old core to receive your deposit back.
Customer Reviews
- Professional installation is recommended.
- Ensure proper oil and coolant lines are connected.
- Follow factory torque specifications.
- Allow engine to cool before installation.
- Inspect air cleaner, intake duct and exhaust manifold for foreign material.
- Clean gasket surfaces and check oil supply and drain lines for kinks or cracks.
Product Details
Restore OEM performance with Proturbo’s remanufactured replacement for John Deere part DZ114777, a low-actuator turbocharger with 24-volt control. Every unit is remanufactured in the USA to OE specifications, dynamically balanced, and flow-bench calibrated so your machine gets consistent boost, quick response, and long service life.
Why choose Proturbo Reman
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OE-level fit & function — Direct replacement for DZ114777 (Low Actuator, 24V). No adapter kits or software changes required.
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Actuator calibrated — Electronic low actuator is inspected and set to OE stroke and voltage parameters for reliable control and smooth spool-up. (Matches the 24V spec of the OE unit.)
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Precision rotating group — CHRA fully rebuilt with new bearings, seals, and thrust components; VSR balanced to reduce NVH and extend life.
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Cleaned, machined, and validated — Housings media-cleaned, mating surfaces machined, wastegate/lever mechanisms checked, and final unit hot-tested for leaks.
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Backed by Proturbo — Supported by our diesel turbo specialists and straightforward core program.
Applications (selected)
Designed for late-model John Deere forestry and construction equipment, including:
640L / 640L-II, 643L / 643L-II, 644 P-tier & X-tier, 644L / 644LH, 648L / 648L-II, 748L / 748L-II, 843L / 843L-II. Always verify by PIN/engine code before ordering.
Cross-reference / supersessions
Also cross-references common OE and MFG numbers used on the same application family: RE555873, DZ101175, DZ103289, plus supplier references 1263-970-0016 / -0104 / -0058, etc.
What’s included
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Remanufactured turbocharger assembly with low actuator (24V) installed and calibrated.
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New mounting gaskets and O-rings (when applicable).
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Installation guide & return instructions for core.
Recommended installation notes
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Update oil feed/return lines if contaminated or restricted; prime CHRA with clean oil.
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Verify charge-air system is leak-free; replace air & oil filters; confirm correct voltage to actuator.
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After install, perform an idle/soak procedure and check live data for commanded vs. actual actuator position.
Core return: Standard like-for-like core required (intact housings and actuator). Cores with broken housings or missing actuators may incur deductions.
Built by Proturbo. Tested to perform.
Get your machine back to work with confidence.
