FILTERUP 667-203 1.4L Turbocharger Kit

Updated May 13, 2026

Same OE Chain, Different Disclosure Layers

Both kits ship as Cluster A 1.4L LUV repair listings on the Garrett 781504 frame. The split is in which disclosure layer each listing publishes.

Filterup\'s chassis fence: Compatible with Buick and Chevrolet Models with 1.4 Liter 4-cylinder engine, including 2013-2021 Buick Encore, 2011-2015 Chevrolet Cruze. TEKKOAUTO\'s chassis fence: Compatible with Chevrolet Cruze 1.4L 2011-2016. The chassis-year envelopes diverge — Filterup runs through 2020 / 2021 on the Sonic / Trax / Encore platforms; TEKKOAUTO fences at 2016 on the Cruze and 2018 across Sonic / Trax / Encore. For 2019-2021 Sonic, Trax, or Encore owners on the OE LUV chassis, Filterup is the only one of the two listings that explicitly names the chassis year.

Filterup\'s 8-Stamp List + Failure Checklist

Filterup runs the deepest OE cross-reference in the Cluster A chain. Eight OE codes named directly on the listing — four of them GM internal supplier alternates that no other budget listing on this chain enumerates.

The Filterup cross-reference: OEM PART NUMBER】667-203, 25201066, 25198474, 25199832, 25201063, 25198550, 55565353, 781504-0001. The GM internal alternates 25201066, 25198474, 25199832, and 25198550 appear on selected 2011-2014 Cruze 1.4L LUV castings as supplier-rotation stamps inside the production run. A buyer photographing the failed turbo\'s casting and finding a 25198474 prefix finds the exact match only on Filterup. TEKKOAUTO\'s pared cross-reference covers the more visible 667-203 / 55565353 / 781504 family but not the GM internal alternates.

Filterup also publishes a pre-purchase diagnostic surface that TEKKOAUTO does not: A failing turbocharger is susceptible to power loss, leaking, smoking, increased oil consumption, and emits a loud siren noise. The siren-noise tell is the diagnostic anchor for terminal cartridge-bearing failure. The oil-consumption tell signals seal-ring failure. The power-loss and smoking combination signals wastegate-calibration drift. A buyer running pre-purchase symptom-matching on the failed factory turbo reads against Filterup\'s checklist before ordering — that disclosure layer is absent from TEKKOAUTO\'s listing.

TEKKOAUTO Brings The r/ChevySonic Thread

TEKKOAUTO is the only Cluster A budget listing in our coverage with a documented community-thread footprint on its mining substrate. The r/ChevySonic thread surfaces alongside the listing data.

The Sonic-owner failure-mode report: Turbo was replaced due to a 1 1/2 inch crack and loose waste gate. A 2019 Sonic at roughly 48,000 miles with a visible 1.5-inch crack on the turbo housing and a loose wastegate is the failure-mode signal Filterup\'s zero-thread substrate cannot match. The thread context also publishes the install-discipline gold standard the community converges on: Make sure you change your oil feed line regularly. If it gets clogged the turbo is dead. Oil-feed-line maintenance is the maintenance signal that separates a 30,000-mile aftermarket-turbo failure from a 100,000-mile aftermarket-turbo success on the 1.4L LUV chassis.

The same thread context surfaces the 2018 Chevy Sonic recall notice and the plastic-cooling-system outlet tee weak-spot that the community recommends replacing alongside the turbo. Neither item appears on Filterup\'s listing substrate. TEKKOAUTO\'s community footprint is the differentiating axis on this cross-shop.

Material Disclosure And Install Recommendation

Both listings publish marketing-claim language alongside the spec sheet. Filterup names the casting material; TEKKOAUTO names the install path.

Filterup\'s casting-material framing: Made of high-grade aluminum and iron, provides excellent abrasion resistance. Aluminum-and-iron is accurate for a turbo as a whole — compressor housing aluminum, turbine housing iron — but does not name the turbine-side alloy where exhaust-gas-temperature drives the metallurgy decision. TEKKOAUTO does not publish an equivalent material claim on its listing.

TEKKOAUTO publishes an install recommendation Filterup does not: Note: Installation under professional instruction is recommended. The published recommendation is the warranty-paper hook — useful evidence for a buyer who plans to hand the install to an independent shop and wants the recommendation in writing on the listing page. For a confident DIY installer, the recommendation is mechanically immaterial — both kits target the same chassis-side hardware pattern and either installs on a home lift with the correct torque sequence. For warranty-claim time, the TEKKOAUTO recommendation widens the importer\'s claim-denial path on a DIY install.

OE List: Width vs Stamp Specificity

The TEKKOAUTO OE list is narrower but names dash-suffix stamps Filterup compresses into a base prefix.

TEKKOAUTO\'s cross-reference: Replacement Part Number: 667-203, 667203, 81504, 860156, 55565353, 781504-5004S, 781504-5001S. The 781504-5004S and 781504-5001S dash-suffix stamps point at specific Garrett production sub-lots within the 781504 frame — useful when the buyer\'s failed casting carries a 781504-5004S stamp rather than the bare 781504 base prefix. Filterup\'s listing compresses the 781504 family into 781504-0001 without naming the dash-suffix variants. A buyer matching against a 781504-5004S casting finds the exact dash-suffix only on TEKKOAUTO; a buyer matching against a 25198474 GM internal supplier alternate finds the exact stamp only on Filterup. Both depths matter for different sub-segments of the same install base.

Install Discipline Beats Brand Selection

Both kits sit in the Chinese-import budget tier where casting-lot variance dominates unit-to-unit consistency more than the brand pick. The r/ChevySonic community surfaces the maintenance discipline that matters more than the listing-language choice.

The oil-feed-line line — change the feed line regularly, clogged feed line kills the turbo — sits at the maintenance ceiling for any aftermarket-turbo install on the 1.4L LUV chassis. The pre-prime discipline (filling the oil-feed line with fresh oil before crank-start), the gasket-replacement discipline (the kit comes with paper oil gaskets that need correct seating), the PCV-system root-cause check (a clogged PCV system loads the turbo seals and starts the oil-consumption failure mode), and the cooling-system tee weak-spot replacement all apply on either Filterup or TEKKOAUTO install. The right install hedge is the discipline list, not the brand pick.

If You\'re Coming From Filterup

If you landed on the Filterup listing first, the cross-shop question is whether TEKKOAUTO gives you anything Filterup\'s stamp-list depth does not.

For a buyer who has eyes on the failed casting and reads a bare 781504 prefix, Filterup\'s stamp-list is already the precise discriminator. The cross-shop tilts toward TEKKOAUTO when the buyer wants the r/ChevySonic community-thread context — the 1.5-inch-crack failure mode, the oil-feed-line maintenance gold-standard, the 2018 Sonic recall context, and the plastic cooling outlet tee weak-spot. The TEKKOAUTO 70/30 enthusiast/critic review-pool split is also a modest cleaner-reading signal against Filterup\'s 6/3 polarized split. For 2019-2021 Sonic / Trax / Encore owners, stay on Filterup — TEKKOAUTO\'s fitment fence ends at 2018 across those platforms and the dash-suffix stamps it names do not appear on first-gen LUV castings outside Filterup\'s coverage.

If You\'re Coming From TEKKOAUTO

If you landed on the TEKKOAUTO listing first, the cross-shop question is whether Filterup gives you broader confidence on a stamp-driven match.

The Filterup listing answers the diagnostic question "what OE part number is stamped on the failed casting?" with the deepest cross-reference in the Cluster A chain — including the four GM internal supplier alternates (25201066, 25198474, 25199832, 25198550) that TEKKOAUTO does not name. Filterup also publishes the pre-purchase failure-symptom checklist that buyers can run as a diagnostic against the failed turbo. However, TEKKOAUTO\'s 781504-5004S and 781504-5001S dash-suffix stamps are the precise match for Garrett production sub-lots Filterup compresses into the 781504-0001 base prefix. For a confirmed 781504-5004S casting, TEKKOAUTO is the exact-stamp match; for a 25198474 GM internal alternate, Filterup is the only match. Confirm the casting-stamp prefix on the failed turbo before ordering either kit.

For underlying turbocharger engineering background covering the Garrett 781504 frame both kits implement, the Wikipedia turbocharger reference documents the compressor-and-turbine architecture, the TSReman Turbo University service-part catalog publishes the Garrett 781504 cross-reference manifest cited by both listings, and the ADP Distributors reference covers the Cruze / Sonic 1.4L LUV chassis OE chain context buyers can verify against the casting stamp.

Verdict: Stamp Depth vs Community Context

No clear winner. Same OE chain, same casting-lot variance risk, different evidence depth on different axes. Pick by which evidence the buyer values more — the OE-stamp list or the community-thread failure-mode context.

Pick Filterup when the failed turbo\'s casting carries one of the GM internal supplier alternates (25201066, 25198474, 25199832, 25198550) that no other Cluster A budget listing names, when the failure-symptom checklist matches the pre-purchase diagnostic the buyer is running, or when the chassis is a 2019-2021 Sonic / Trax / Encore outside TEKKOAUTO\'s 2018 fitment fence. Pick TEKKOAUTO when the r/ChevySonic community-thread context matters — the 1.5-inch-crack failure mode, the oil-feed-line maintenance discipline, the 2018 Sonic recall notice, and the plastic cooling outlet tee weak-spot — or when the dash-suffix 781504-5004S / 781504-5001S stamp matches the failed casting, or when the 70/30 enthusiast/critic review-pool split tips the pool-cleanliness axis.

Cluster A Evidence-Depth Questions

Which Cluster A pick has the deeper OE cross-reference — Filterup or TEKKOAUTO?

Filterup. The Filterup listing names eight OE prefixes — 667-203, 25201066, 25198474, 25199832, 25201063, 25198550, 55565353, and 781504-0001 — including four GM internal supplier-rotation alternates (25201066, 25198474, 25199832, 25198550) that no other Cluster A budget listing publishes. TEKKOAUTO pares the cross-reference to seven items: 667-203, 667203, 81504, 860156, 55565353, 781504-5004S, and 781504-5001S. TEKKOAUTO names two specific 781504 dash-suffix stamps that Filterup compresses into the 781504-0001 prefix, but Filterup wins on raw count and on GM internal coverage. A buyer landing on a failed casting with a 25201066 / 25198474 / 25199832 / 25198550 prefix finds the exact stamp only on Filterup.

Does the r/ChevySonic community thread change the cross-shop?

Yes — directionally toward TEKKOAUTO on community-context grounds. TEKKOAUTO's mining substrate surfaces a 2019 Sonic owner thread on r/ChevySonic where the OE turbo cracked at 48,000 miles with a loose wastegate, the owner published the install discipline (oil-feed-line maintenance is the maintenance gold-standard for turbo longevity), the 2018 Sonic recall notice context, and the plastic cooling outlet tee weak-spot that runs alongside the turbo replacement. Filterup's mining substrate returns zero community-thread footprint on its exact SKU. The community-context signal is one of the very few axes where TEKKOAUTO leads on the chain; Filterup's OE-stamp depth + failure-symptom checklist + wider year envelope offsets it on other axes.

What does the TEKKOAUTO professional-install recommendation actually do?

It moves the warranty-claim risk profile, not the install difficulty. A confident DIY installer with the correct torque sequence and pre-prime discipline can install either kit on a home lift — both target the same chassis-side hardware pattern on the 1.4L LUV. The TEKKOAUTO listing publishes an explicit professional-install recommendation in writing; Filterup does not. For warranty-claim time, the published recommendation gives the TEKKOAUTO importer a wider claim-denial path on a DIY install if a failure surfaces post-purchase. For shop installs both kits land identically. The recommendation matters at warranty-paper time, not at install-bench time.

How do the year-coverage envelopes compare?

Filterup runs the wider envelope. Filterup publishes 2011-2015 on the Cruze, 2012-2020 on the Sonic, 2015-2021 on the Trax, and 2013-2021 on the Buick Encore. TEKKOAUTO fences earlier on the Cruze (2011-2016) and on the Sonic / Trax (both 2012-2018 / 2013-2018), and TEKKOAUTO does publish an explicit Buick Encore 1.4L 2013-2018 fitment line. For 2019-2020 Sonic owners staying on the OE LUV chassis, Filterup is the only one of the two listings that explicitly names the chassis year. The 1.4L LE2 second-generation engine that arrived on the 2016+ Cruze is the year-coverage discriminator on the Cruze side — confirm the engine code (LUV vs LE2) on the door tag regardless of which kit ships.

Which review pool reads cleaner — Filterup's polarized 9 or TEKKOAUTO's 70/30 of 10?

TEKKOAUTO. The TEKKOAUTO pool sits at 10 verified reviews with a 7-enthusiast / 3-critic split — a 70/30 positive distribution. Filterup's pool sits at 9 verified reviews with a 6-enthusiast / 3-critic split — a 67/33 split, slightly narrower headline but documented as polarized rather than the cleaner positive lean. Both pools remain thin enough that one outlier on either side moves the composite a third of a star, and both sit far below the institutional density A-Premium Complete holds at 4.31 / 5 across 13 verified reviews on the same Cluster A chain. The TEKKOAUTO 70/30 reading is the modest pool-cleanliness signal in TEKKOAUTO's favor; the depth axis still goes to A-Premium.

Use our Turbo Replacement Cost Estimator to size aftermarket spend on either kit against the dealer-quote baseline for your Cruze / Sonic 1.4L chassis. For the broader Cluster A 1.4L Ecotec LUV context, route to the Cruze 1.4L replacement turbo roundup covering the full Garrett 667-203 / GM 55565353 / GT1446V OE chain.